diff --git a/L2J_Mobius_1.0_Ertheia/java/org/l2jmobius/gameserver/model/Spawn.java b/L2J_Mobius_1.0_Ertheia/java/org/l2jmobius/gameserver/model/Spawn.java
index 05966df2cb..78c3949b5d 100644
--- a/L2J_Mobius_1.0_Ertheia/java/org/l2jmobius/gameserver/model/Spawn.java
+++ b/L2J_Mobius_1.0_Ertheia/java/org/l2jmobius/gameserver/model/Spawn.java
@@ -97,7 +97,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	 */
 	public Spawn(NpcTemplate template) throws SecurityException, ClassNotFoundException, NoSuchMethodException, ClassCastException
 	{
-		super(0, 0, 0);
+		super(0, 0, -10000);
 		// Set the _template of the Spawn
 		_template = template;
 		
@@ -122,7 +122,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	 */
 	public Spawn(int npcId) throws SecurityException, ClassNotFoundException, NoSuchMethodException, ClassCastException
 	{
-		super(0, 0, 0);
+		super(0, 0, -10000);
 		_template = Objects.requireNonNull(NpcData.getInstance().getTemplate(npcId), "NpcTemplate not found for NPC ID: " + npcId);
 		
 		final String className = "org.l2jmobius.gameserver.model.actor.instance." + _template.getType() + "Instance";
@@ -361,7 +361,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	{
 		int newlocx = 0;
 		int newlocy = 0;
-		int newlocz = 0;
+		int newlocz = -10000;
 		
 		// If Locx and Locy are not defined, the NpcInstance must be spawned in an area defined by location or spawn territory
 		// New method
diff --git a/L2J_Mobius_1.0_Ertheia/java/org/l2jmobius/gameserver/model/WorldObject.java b/L2J_Mobius_1.0_Ertheia/java/org/l2jmobius/gameserver/model/WorldObject.java
index 8cbf03fdc5..463ea7acc4 100644
--- a/L2J_Mobius_1.0_Ertheia/java/org/l2jmobius/gameserver/model/WorldObject.java
+++ b/L2J_Mobius_1.0_Ertheia/java/org/l2jmobius/gameserver/model/WorldObject.java
@@ -526,9 +526,13 @@ public abstract class WorldObject extends ListenersContainer implements IIdentif
 		return _worldRegion;
 	}
 	
-	public void setWorldRegion(WorldRegion value)
+	public void setWorldRegion(WorldRegion region)
 	{
-		_worldRegion = value;
+		if ((region == null) && (_worldRegion != null))
+		{
+			_worldRegion.removeVisibleObject(this);
+		}
+		_worldRegion = region;
 	}
 	
 	/**
diff --git a/L2J_Mobius_1.0_Ertheia/java/org/l2jmobius/gameserver/model/actor/Creature.java b/L2J_Mobius_1.0_Ertheia/java/org/l2jmobius/gameserver/model/actor/Creature.java
index c50a086a26..4ff4745460 100644
--- a/L2J_Mobius_1.0_Ertheia/java/org/l2jmobius/gameserver/model/actor/Creature.java
+++ b/L2J_Mobius_1.0_Ertheia/java/org/l2jmobius/gameserver/model/actor/Creature.java
@@ -1722,15 +1722,6 @@ public abstract class Creature extends WorldObject implements ISkillsHolder, IDe
 		// Set world region to null.
 		setWorldRegion(null);
 		
-		// Reset initial monster position.
-		if (isMonster() && (((Npc) this).getSpawn() != null))
-		{
-			ThreadPool.schedule(() ->
-			{
-				setXYZ(0, 0, -10000);
-			}, 5000);
-		}
-		
 		return true;
 	}
 	
diff --git a/L2J_Mobius_2.5_Underground/java/org/l2jmobius/gameserver/model/Spawn.java b/L2J_Mobius_2.5_Underground/java/org/l2jmobius/gameserver/model/Spawn.java
index 05966df2cb..78c3949b5d 100644
--- a/L2J_Mobius_2.5_Underground/java/org/l2jmobius/gameserver/model/Spawn.java
+++ b/L2J_Mobius_2.5_Underground/java/org/l2jmobius/gameserver/model/Spawn.java
@@ -97,7 +97,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	 */
 	public Spawn(NpcTemplate template) throws SecurityException, ClassNotFoundException, NoSuchMethodException, ClassCastException
 	{
-		super(0, 0, 0);
+		super(0, 0, -10000);
 		// Set the _template of the Spawn
 		_template = template;
 		
@@ -122,7 +122,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	 */
 	public Spawn(int npcId) throws SecurityException, ClassNotFoundException, NoSuchMethodException, ClassCastException
 	{
-		super(0, 0, 0);
+		super(0, 0, -10000);
 		_template = Objects.requireNonNull(NpcData.getInstance().getTemplate(npcId), "NpcTemplate not found for NPC ID: " + npcId);
 		
 		final String className = "org.l2jmobius.gameserver.model.actor.instance." + _template.getType() + "Instance";
@@ -361,7 +361,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	{
 		int newlocx = 0;
 		int newlocy = 0;
-		int newlocz = 0;
+		int newlocz = -10000;
 		
 		// If Locx and Locy are not defined, the NpcInstance must be spawned in an area defined by location or spawn territory
 		// New method
diff --git a/L2J_Mobius_2.5_Underground/java/org/l2jmobius/gameserver/model/WorldObject.java b/L2J_Mobius_2.5_Underground/java/org/l2jmobius/gameserver/model/WorldObject.java
index 8cbf03fdc5..463ea7acc4 100644
--- a/L2J_Mobius_2.5_Underground/java/org/l2jmobius/gameserver/model/WorldObject.java
+++ b/L2J_Mobius_2.5_Underground/java/org/l2jmobius/gameserver/model/WorldObject.java
@@ -526,9 +526,13 @@ public abstract class WorldObject extends ListenersContainer implements IIdentif
 		return _worldRegion;
 	}
 	
-	public void setWorldRegion(WorldRegion value)
+	public void setWorldRegion(WorldRegion region)
 	{
-		_worldRegion = value;
+		if ((region == null) && (_worldRegion != null))
+		{
+			_worldRegion.removeVisibleObject(this);
+		}
+		_worldRegion = region;
 	}
 	
 	/**
diff --git a/L2J_Mobius_2.5_Underground/java/org/l2jmobius/gameserver/model/actor/Creature.java b/L2J_Mobius_2.5_Underground/java/org/l2jmobius/gameserver/model/actor/Creature.java
index c50a086a26..4ff4745460 100644
--- a/L2J_Mobius_2.5_Underground/java/org/l2jmobius/gameserver/model/actor/Creature.java
+++ b/L2J_Mobius_2.5_Underground/java/org/l2jmobius/gameserver/model/actor/Creature.java
@@ -1722,15 +1722,6 @@ public abstract class Creature extends WorldObject implements ISkillsHolder, IDe
 		// Set world region to null.
 		setWorldRegion(null);
 		
-		// Reset initial monster position.
-		if (isMonster() && (((Npc) this).getSpawn() != null))
-		{
-			ThreadPool.schedule(() ->
-			{
-				setXYZ(0, 0, -10000);
-			}, 5000);
-		}
-		
 		return true;
 	}
 	
diff --git a/L2J_Mobius_3.0_Helios/java/org/l2jmobius/gameserver/model/Spawn.java b/L2J_Mobius_3.0_Helios/java/org/l2jmobius/gameserver/model/Spawn.java
index 05966df2cb..78c3949b5d 100644
--- a/L2J_Mobius_3.0_Helios/java/org/l2jmobius/gameserver/model/Spawn.java
+++ b/L2J_Mobius_3.0_Helios/java/org/l2jmobius/gameserver/model/Spawn.java
@@ -97,7 +97,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	 */
 	public Spawn(NpcTemplate template) throws SecurityException, ClassNotFoundException, NoSuchMethodException, ClassCastException
 	{
-		super(0, 0, 0);
+		super(0, 0, -10000);
 		// Set the _template of the Spawn
 		_template = template;
 		
@@ -122,7 +122,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	 */
 	public Spawn(int npcId) throws SecurityException, ClassNotFoundException, NoSuchMethodException, ClassCastException
 	{
-		super(0, 0, 0);
+		super(0, 0, -10000);
 		_template = Objects.requireNonNull(NpcData.getInstance().getTemplate(npcId), "NpcTemplate not found for NPC ID: " + npcId);
 		
 		final String className = "org.l2jmobius.gameserver.model.actor.instance." + _template.getType() + "Instance";
@@ -361,7 +361,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	{
 		int newlocx = 0;
 		int newlocy = 0;
-		int newlocz = 0;
+		int newlocz = -10000;
 		
 		// If Locx and Locy are not defined, the NpcInstance must be spawned in an area defined by location or spawn territory
 		// New method
diff --git a/L2J_Mobius_3.0_Helios/java/org/l2jmobius/gameserver/model/WorldObject.java b/L2J_Mobius_3.0_Helios/java/org/l2jmobius/gameserver/model/WorldObject.java
index 8cbf03fdc5..463ea7acc4 100644
--- a/L2J_Mobius_3.0_Helios/java/org/l2jmobius/gameserver/model/WorldObject.java
+++ b/L2J_Mobius_3.0_Helios/java/org/l2jmobius/gameserver/model/WorldObject.java
@@ -526,9 +526,13 @@ public abstract class WorldObject extends ListenersContainer implements IIdentif
 		return _worldRegion;
 	}
 	
-	public void setWorldRegion(WorldRegion value)
+	public void setWorldRegion(WorldRegion region)
 	{
-		_worldRegion = value;
+		if ((region == null) && (_worldRegion != null))
+		{
+			_worldRegion.removeVisibleObject(this);
+		}
+		_worldRegion = region;
 	}
 	
 	/**
diff --git a/L2J_Mobius_3.0_Helios/java/org/l2jmobius/gameserver/model/actor/Creature.java b/L2J_Mobius_3.0_Helios/java/org/l2jmobius/gameserver/model/actor/Creature.java
index 45cb122680..1959558ed6 100644
--- a/L2J_Mobius_3.0_Helios/java/org/l2jmobius/gameserver/model/actor/Creature.java
+++ b/L2J_Mobius_3.0_Helios/java/org/l2jmobius/gameserver/model/actor/Creature.java
@@ -1722,15 +1722,6 @@ public abstract class Creature extends WorldObject implements ISkillsHolder, IDe
 		// Set world region to null.
 		setWorldRegion(null);
 		
-		// Reset initial monster position.
-		if (isMonster() && (((Npc) this).getSpawn() != null))
-		{
-			ThreadPool.schedule(() ->
-			{
-				setXYZ(0, 0, -10000);
-			}, 5000);
-		}
-		
 		return true;
 	}
 	
diff --git a/L2J_Mobius_4.0_GrandCrusade/java/org/l2jmobius/gameserver/model/Spawn.java b/L2J_Mobius_4.0_GrandCrusade/java/org/l2jmobius/gameserver/model/Spawn.java
index 05966df2cb..78c3949b5d 100644
--- a/L2J_Mobius_4.0_GrandCrusade/java/org/l2jmobius/gameserver/model/Spawn.java
+++ b/L2J_Mobius_4.0_GrandCrusade/java/org/l2jmobius/gameserver/model/Spawn.java
@@ -97,7 +97,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	 */
 	public Spawn(NpcTemplate template) throws SecurityException, ClassNotFoundException, NoSuchMethodException, ClassCastException
 	{
-		super(0, 0, 0);
+		super(0, 0, -10000);
 		// Set the _template of the Spawn
 		_template = template;
 		
@@ -122,7 +122,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	 */
 	public Spawn(int npcId) throws SecurityException, ClassNotFoundException, NoSuchMethodException, ClassCastException
 	{
-		super(0, 0, 0);
+		super(0, 0, -10000);
 		_template = Objects.requireNonNull(NpcData.getInstance().getTemplate(npcId), "NpcTemplate not found for NPC ID: " + npcId);
 		
 		final String className = "org.l2jmobius.gameserver.model.actor.instance." + _template.getType() + "Instance";
@@ -361,7 +361,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	{
 		int newlocx = 0;
 		int newlocy = 0;
-		int newlocz = 0;
+		int newlocz = -10000;
 		
 		// If Locx and Locy are not defined, the NpcInstance must be spawned in an area defined by location or spawn territory
 		// New method
diff --git a/L2J_Mobius_4.0_GrandCrusade/java/org/l2jmobius/gameserver/model/WorldObject.java b/L2J_Mobius_4.0_GrandCrusade/java/org/l2jmobius/gameserver/model/WorldObject.java
index 8cbf03fdc5..463ea7acc4 100644
--- a/L2J_Mobius_4.0_GrandCrusade/java/org/l2jmobius/gameserver/model/WorldObject.java
+++ b/L2J_Mobius_4.0_GrandCrusade/java/org/l2jmobius/gameserver/model/WorldObject.java
@@ -526,9 +526,13 @@ public abstract class WorldObject extends ListenersContainer implements IIdentif
 		return _worldRegion;
 	}
 	
-	public void setWorldRegion(WorldRegion value)
+	public void setWorldRegion(WorldRegion region)
 	{
-		_worldRegion = value;
+		if ((region == null) && (_worldRegion != null))
+		{
+			_worldRegion.removeVisibleObject(this);
+		}
+		_worldRegion = region;
 	}
 	
 	/**
diff --git a/L2J_Mobius_4.0_GrandCrusade/java/org/l2jmobius/gameserver/model/actor/Creature.java b/L2J_Mobius_4.0_GrandCrusade/java/org/l2jmobius/gameserver/model/actor/Creature.java
index 45cb122680..1959558ed6 100644
--- a/L2J_Mobius_4.0_GrandCrusade/java/org/l2jmobius/gameserver/model/actor/Creature.java
+++ b/L2J_Mobius_4.0_GrandCrusade/java/org/l2jmobius/gameserver/model/actor/Creature.java
@@ -1722,15 +1722,6 @@ public abstract class Creature extends WorldObject implements ISkillsHolder, IDe
 		// Set world region to null.
 		setWorldRegion(null);
 		
-		// Reset initial monster position.
-		if (isMonster() && (((Npc) this).getSpawn() != null))
-		{
-			ThreadPool.schedule(() ->
-			{
-				setXYZ(0, 0, -10000);
-			}, 5000);
-		}
-		
 		return true;
 	}
 	
diff --git a/L2J_Mobius_5.0_Salvation/java/org/l2jmobius/gameserver/model/Spawn.java b/L2J_Mobius_5.0_Salvation/java/org/l2jmobius/gameserver/model/Spawn.java
index 05966df2cb..78c3949b5d 100644
--- a/L2J_Mobius_5.0_Salvation/java/org/l2jmobius/gameserver/model/Spawn.java
+++ b/L2J_Mobius_5.0_Salvation/java/org/l2jmobius/gameserver/model/Spawn.java
@@ -97,7 +97,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	 */
 	public Spawn(NpcTemplate template) throws SecurityException, ClassNotFoundException, NoSuchMethodException, ClassCastException
 	{
-		super(0, 0, 0);
+		super(0, 0, -10000);
 		// Set the _template of the Spawn
 		_template = template;
 		
@@ -122,7 +122,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	 */
 	public Spawn(int npcId) throws SecurityException, ClassNotFoundException, NoSuchMethodException, ClassCastException
 	{
-		super(0, 0, 0);
+		super(0, 0, -10000);
 		_template = Objects.requireNonNull(NpcData.getInstance().getTemplate(npcId), "NpcTemplate not found for NPC ID: " + npcId);
 		
 		final String className = "org.l2jmobius.gameserver.model.actor.instance." + _template.getType() + "Instance";
@@ -361,7 +361,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	{
 		int newlocx = 0;
 		int newlocy = 0;
-		int newlocz = 0;
+		int newlocz = -10000;
 		
 		// If Locx and Locy are not defined, the NpcInstance must be spawned in an area defined by location or spawn territory
 		// New method
diff --git a/L2J_Mobius_5.0_Salvation/java/org/l2jmobius/gameserver/model/WorldObject.java b/L2J_Mobius_5.0_Salvation/java/org/l2jmobius/gameserver/model/WorldObject.java
index 8cbf03fdc5..463ea7acc4 100644
--- a/L2J_Mobius_5.0_Salvation/java/org/l2jmobius/gameserver/model/WorldObject.java
+++ b/L2J_Mobius_5.0_Salvation/java/org/l2jmobius/gameserver/model/WorldObject.java
@@ -526,9 +526,13 @@ public abstract class WorldObject extends ListenersContainer implements IIdentif
 		return _worldRegion;
 	}
 	
-	public void setWorldRegion(WorldRegion value)
+	public void setWorldRegion(WorldRegion region)
 	{
-		_worldRegion = value;
+		if ((region == null) && (_worldRegion != null))
+		{
+			_worldRegion.removeVisibleObject(this);
+		}
+		_worldRegion = region;
 	}
 	
 	/**
diff --git a/L2J_Mobius_5.0_Salvation/java/org/l2jmobius/gameserver/model/actor/Creature.java b/L2J_Mobius_5.0_Salvation/java/org/l2jmobius/gameserver/model/actor/Creature.java
index 45cb122680..1959558ed6 100644
--- a/L2J_Mobius_5.0_Salvation/java/org/l2jmobius/gameserver/model/actor/Creature.java
+++ b/L2J_Mobius_5.0_Salvation/java/org/l2jmobius/gameserver/model/actor/Creature.java
@@ -1722,15 +1722,6 @@ public abstract class Creature extends WorldObject implements ISkillsHolder, IDe
 		// Set world region to null.
 		setWorldRegion(null);
 		
-		// Reset initial monster position.
-		if (isMonster() && (((Npc) this).getSpawn() != null))
-		{
-			ThreadPool.schedule(() ->
-			{
-				setXYZ(0, 0, -10000);
-			}, 5000);
-		}
-		
 		return true;
 	}
 	
diff --git a/L2J_Mobius_5.5_EtinasFate/java/org/l2jmobius/gameserver/model/Spawn.java b/L2J_Mobius_5.5_EtinasFate/java/org/l2jmobius/gameserver/model/Spawn.java
index 05966df2cb..78c3949b5d 100644
--- a/L2J_Mobius_5.5_EtinasFate/java/org/l2jmobius/gameserver/model/Spawn.java
+++ b/L2J_Mobius_5.5_EtinasFate/java/org/l2jmobius/gameserver/model/Spawn.java
@@ -97,7 +97,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	 */
 	public Spawn(NpcTemplate template) throws SecurityException, ClassNotFoundException, NoSuchMethodException, ClassCastException
 	{
-		super(0, 0, 0);
+		super(0, 0, -10000);
 		// Set the _template of the Spawn
 		_template = template;
 		
@@ -122,7 +122,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	 */
 	public Spawn(int npcId) throws SecurityException, ClassNotFoundException, NoSuchMethodException, ClassCastException
 	{
-		super(0, 0, 0);
+		super(0, 0, -10000);
 		_template = Objects.requireNonNull(NpcData.getInstance().getTemplate(npcId), "NpcTemplate not found for NPC ID: " + npcId);
 		
 		final String className = "org.l2jmobius.gameserver.model.actor.instance." + _template.getType() + "Instance";
@@ -361,7 +361,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	{
 		int newlocx = 0;
 		int newlocy = 0;
-		int newlocz = 0;
+		int newlocz = -10000;
 		
 		// If Locx and Locy are not defined, the NpcInstance must be spawned in an area defined by location or spawn territory
 		// New method
diff --git a/L2J_Mobius_5.5_EtinasFate/java/org/l2jmobius/gameserver/model/WorldObject.java b/L2J_Mobius_5.5_EtinasFate/java/org/l2jmobius/gameserver/model/WorldObject.java
index 8cbf03fdc5..463ea7acc4 100644
--- a/L2J_Mobius_5.5_EtinasFate/java/org/l2jmobius/gameserver/model/WorldObject.java
+++ b/L2J_Mobius_5.5_EtinasFate/java/org/l2jmobius/gameserver/model/WorldObject.java
@@ -526,9 +526,13 @@ public abstract class WorldObject extends ListenersContainer implements IIdentif
 		return _worldRegion;
 	}
 	
-	public void setWorldRegion(WorldRegion value)
+	public void setWorldRegion(WorldRegion region)
 	{
-		_worldRegion = value;
+		if ((region == null) && (_worldRegion != null))
+		{
+			_worldRegion.removeVisibleObject(this);
+		}
+		_worldRegion = region;
 	}
 	
 	/**
diff --git a/L2J_Mobius_5.5_EtinasFate/java/org/l2jmobius/gameserver/model/actor/Creature.java b/L2J_Mobius_5.5_EtinasFate/java/org/l2jmobius/gameserver/model/actor/Creature.java
index 45cb122680..1959558ed6 100644
--- a/L2J_Mobius_5.5_EtinasFate/java/org/l2jmobius/gameserver/model/actor/Creature.java
+++ b/L2J_Mobius_5.5_EtinasFate/java/org/l2jmobius/gameserver/model/actor/Creature.java
@@ -1722,15 +1722,6 @@ public abstract class Creature extends WorldObject implements ISkillsHolder, IDe
 		// Set world region to null.
 		setWorldRegion(null);
 		
-		// Reset initial monster position.
-		if (isMonster() && (((Npc) this).getSpawn() != null))
-		{
-			ThreadPool.schedule(() ->
-			{
-				setXYZ(0, 0, -10000);
-			}, 5000);
-		}
-		
 		return true;
 	}
 	
diff --git a/L2J_Mobius_6.0_Fafurion/java/org/l2jmobius/gameserver/model/Spawn.java b/L2J_Mobius_6.0_Fafurion/java/org/l2jmobius/gameserver/model/Spawn.java
index 05966df2cb..78c3949b5d 100644
--- a/L2J_Mobius_6.0_Fafurion/java/org/l2jmobius/gameserver/model/Spawn.java
+++ b/L2J_Mobius_6.0_Fafurion/java/org/l2jmobius/gameserver/model/Spawn.java
@@ -97,7 +97,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	 */
 	public Spawn(NpcTemplate template) throws SecurityException, ClassNotFoundException, NoSuchMethodException, ClassCastException
 	{
-		super(0, 0, 0);
+		super(0, 0, -10000);
 		// Set the _template of the Spawn
 		_template = template;
 		
@@ -122,7 +122,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	 */
 	public Spawn(int npcId) throws SecurityException, ClassNotFoundException, NoSuchMethodException, ClassCastException
 	{
-		super(0, 0, 0);
+		super(0, 0, -10000);
 		_template = Objects.requireNonNull(NpcData.getInstance().getTemplate(npcId), "NpcTemplate not found for NPC ID: " + npcId);
 		
 		final String className = "org.l2jmobius.gameserver.model.actor.instance." + _template.getType() + "Instance";
@@ -361,7 +361,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	{
 		int newlocx = 0;
 		int newlocy = 0;
-		int newlocz = 0;
+		int newlocz = -10000;
 		
 		// If Locx and Locy are not defined, the NpcInstance must be spawned in an area defined by location or spawn territory
 		// New method
diff --git a/L2J_Mobius_6.0_Fafurion/java/org/l2jmobius/gameserver/model/WorldObject.java b/L2J_Mobius_6.0_Fafurion/java/org/l2jmobius/gameserver/model/WorldObject.java
index 8cbf03fdc5..463ea7acc4 100644
--- a/L2J_Mobius_6.0_Fafurion/java/org/l2jmobius/gameserver/model/WorldObject.java
+++ b/L2J_Mobius_6.0_Fafurion/java/org/l2jmobius/gameserver/model/WorldObject.java
@@ -526,9 +526,13 @@ public abstract class WorldObject extends ListenersContainer implements IIdentif
 		return _worldRegion;
 	}
 	
-	public void setWorldRegion(WorldRegion value)
+	public void setWorldRegion(WorldRegion region)
 	{
-		_worldRegion = value;
+		if ((region == null) && (_worldRegion != null))
+		{
+			_worldRegion.removeVisibleObject(this);
+		}
+		_worldRegion = region;
 	}
 	
 	/**
diff --git a/L2J_Mobius_6.0_Fafurion/java/org/l2jmobius/gameserver/model/actor/Creature.java b/L2J_Mobius_6.0_Fafurion/java/org/l2jmobius/gameserver/model/actor/Creature.java
index 45cb122680..1959558ed6 100644
--- a/L2J_Mobius_6.0_Fafurion/java/org/l2jmobius/gameserver/model/actor/Creature.java
+++ b/L2J_Mobius_6.0_Fafurion/java/org/l2jmobius/gameserver/model/actor/Creature.java
@@ -1722,15 +1722,6 @@ public abstract class Creature extends WorldObject implements ISkillsHolder, IDe
 		// Set world region to null.
 		setWorldRegion(null);
 		
-		// Reset initial monster position.
-		if (isMonster() && (((Npc) this).getSpawn() != null))
-		{
-			ThreadPool.schedule(() ->
-			{
-				setXYZ(0, 0, -10000);
-			}, 5000);
-		}
-		
 		return true;
 	}
 	
diff --git a/L2J_Mobius_7.0_PreludeOfWar/java/org/l2jmobius/gameserver/model/Spawn.java b/L2J_Mobius_7.0_PreludeOfWar/java/org/l2jmobius/gameserver/model/Spawn.java
index 05966df2cb..78c3949b5d 100644
--- a/L2J_Mobius_7.0_PreludeOfWar/java/org/l2jmobius/gameserver/model/Spawn.java
+++ b/L2J_Mobius_7.0_PreludeOfWar/java/org/l2jmobius/gameserver/model/Spawn.java
@@ -97,7 +97,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	 */
 	public Spawn(NpcTemplate template) throws SecurityException, ClassNotFoundException, NoSuchMethodException, ClassCastException
 	{
-		super(0, 0, 0);
+		super(0, 0, -10000);
 		// Set the _template of the Spawn
 		_template = template;
 		
@@ -122,7 +122,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	 */
 	public Spawn(int npcId) throws SecurityException, ClassNotFoundException, NoSuchMethodException, ClassCastException
 	{
-		super(0, 0, 0);
+		super(0, 0, -10000);
 		_template = Objects.requireNonNull(NpcData.getInstance().getTemplate(npcId), "NpcTemplate not found for NPC ID: " + npcId);
 		
 		final String className = "org.l2jmobius.gameserver.model.actor.instance." + _template.getType() + "Instance";
@@ -361,7 +361,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	{
 		int newlocx = 0;
 		int newlocy = 0;
-		int newlocz = 0;
+		int newlocz = -10000;
 		
 		// If Locx and Locy are not defined, the NpcInstance must be spawned in an area defined by location or spawn territory
 		// New method
diff --git a/L2J_Mobius_7.0_PreludeOfWar/java/org/l2jmobius/gameserver/model/WorldObject.java b/L2J_Mobius_7.0_PreludeOfWar/java/org/l2jmobius/gameserver/model/WorldObject.java
index 8cbf03fdc5..463ea7acc4 100644
--- a/L2J_Mobius_7.0_PreludeOfWar/java/org/l2jmobius/gameserver/model/WorldObject.java
+++ b/L2J_Mobius_7.0_PreludeOfWar/java/org/l2jmobius/gameserver/model/WorldObject.java
@@ -526,9 +526,13 @@ public abstract class WorldObject extends ListenersContainer implements IIdentif
 		return _worldRegion;
 	}
 	
-	public void setWorldRegion(WorldRegion value)
+	public void setWorldRegion(WorldRegion region)
 	{
-		_worldRegion = value;
+		if ((region == null) && (_worldRegion != null))
+		{
+			_worldRegion.removeVisibleObject(this);
+		}
+		_worldRegion = region;
 	}
 	
 	/**
diff --git a/L2J_Mobius_7.0_PreludeOfWar/java/org/l2jmobius/gameserver/model/actor/Creature.java b/L2J_Mobius_7.0_PreludeOfWar/java/org/l2jmobius/gameserver/model/actor/Creature.java
index 43372a52f8..14ca1bbeb7 100644
--- a/L2J_Mobius_7.0_PreludeOfWar/java/org/l2jmobius/gameserver/model/actor/Creature.java
+++ b/L2J_Mobius_7.0_PreludeOfWar/java/org/l2jmobius/gameserver/model/actor/Creature.java
@@ -1722,15 +1722,6 @@ public abstract class Creature extends WorldObject implements ISkillsHolder, IDe
 		// Set world region to null.
 		setWorldRegion(null);
 		
-		// Reset initial monster position.
-		if (isMonster() && (((Npc) this).getSpawn() != null))
-		{
-			ThreadPool.schedule(() ->
-			{
-				setXYZ(0, 0, -10000);
-			}, 5000);
-		}
-		
 		return true;
 	}
 	
diff --git a/L2J_Mobius_CT_2.6_HighFive/java/org/l2jmobius/gameserver/model/Spawn.java b/L2J_Mobius_CT_2.6_HighFive/java/org/l2jmobius/gameserver/model/Spawn.java
index 1475559392..04aa26d913 100644
--- a/L2J_Mobius_CT_2.6_HighFive/java/org/l2jmobius/gameserver/model/Spawn.java
+++ b/L2J_Mobius_CT_2.6_HighFive/java/org/l2jmobius/gameserver/model/Spawn.java
@@ -100,7 +100,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	 */
 	public Spawn(NpcTemplate template) throws SecurityException, ClassNotFoundException, NoSuchMethodException, ClassCastException
 	{
-		super(0, 0, 0);
+		super(0, 0, -10000);
 		// Set the _template of the Spawn
 		_template = template;
 		
@@ -355,7 +355,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	{
 		int newlocx = 0;
 		int newlocy = 0;
-		int newlocz = 0;
+		int newlocz = -10000;
 		
 		// If Locx and Locy are not defined, the NpcInstance must be spawned in an area defined by location or spawn territory
 		// New method
diff --git a/L2J_Mobius_CT_2.6_HighFive/java/org/l2jmobius/gameserver/model/WorldObject.java b/L2J_Mobius_CT_2.6_HighFive/java/org/l2jmobius/gameserver/model/WorldObject.java
index 3f15babfa4..07c67b4c8d 100644
--- a/L2J_Mobius_CT_2.6_HighFive/java/org/l2jmobius/gameserver/model/WorldObject.java
+++ b/L2J_Mobius_CT_2.6_HighFive/java/org/l2jmobius/gameserver/model/WorldObject.java
@@ -539,9 +539,13 @@ public abstract class WorldObject extends ListenersContainer implements IIdentif
 		return _worldRegion;
 	}
 	
-	public void setWorldRegion(WorldRegion value)
+	public void setWorldRegion(WorldRegion region)
 	{
-		_worldRegion = value;
+		if ((region == null) && (_worldRegion != null))
+		{
+			_worldRegion.removeVisibleObject(this);
+		}
+		_worldRegion = region;
 	}
 	
 	/**
diff --git a/L2J_Mobius_CT_2.6_HighFive/java/org/l2jmobius/gameserver/model/actor/Creature.java b/L2J_Mobius_CT_2.6_HighFive/java/org/l2jmobius/gameserver/model/actor/Creature.java
index e876f3aad5..6737d183db 100644
--- a/L2J_Mobius_CT_2.6_HighFive/java/org/l2jmobius/gameserver/model/actor/Creature.java
+++ b/L2J_Mobius_CT_2.6_HighFive/java/org/l2jmobius/gameserver/model/actor/Creature.java
@@ -2469,15 +2469,6 @@ public abstract class Creature extends WorldObject implements ISkillsHolder, IDe
 		// Set world region to null.
 		setWorldRegion(null);
 		
-		// Reset initial monster position.
-		if (isMonster() && (((Npc) this).getSpawn() != null))
-		{
-			ThreadPool.schedule(() ->
-			{
-				setXYZ(0, 0, -10000);
-			}, 5000);
-		}
-		
 		return true;
 	}
 	
diff --git a/L2J_Mobius_Classic_2.0_Saviors/java/org/l2jmobius/gameserver/model/Spawn.java b/L2J_Mobius_Classic_2.0_Saviors/java/org/l2jmobius/gameserver/model/Spawn.java
index 05966df2cb..78c3949b5d 100644
--- a/L2J_Mobius_Classic_2.0_Saviors/java/org/l2jmobius/gameserver/model/Spawn.java
+++ b/L2J_Mobius_Classic_2.0_Saviors/java/org/l2jmobius/gameserver/model/Spawn.java
@@ -97,7 +97,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	 */
 	public Spawn(NpcTemplate template) throws SecurityException, ClassNotFoundException, NoSuchMethodException, ClassCastException
 	{
-		super(0, 0, 0);
+		super(0, 0, -10000);
 		// Set the _template of the Spawn
 		_template = template;
 		
@@ -122,7 +122,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	 */
 	public Spawn(int npcId) throws SecurityException, ClassNotFoundException, NoSuchMethodException, ClassCastException
 	{
-		super(0, 0, 0);
+		super(0, 0, -10000);
 		_template = Objects.requireNonNull(NpcData.getInstance().getTemplate(npcId), "NpcTemplate not found for NPC ID: " + npcId);
 		
 		final String className = "org.l2jmobius.gameserver.model.actor.instance." + _template.getType() + "Instance";
@@ -361,7 +361,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	{
 		int newlocx = 0;
 		int newlocy = 0;
-		int newlocz = 0;
+		int newlocz = -10000;
 		
 		// If Locx and Locy are not defined, the NpcInstance must be spawned in an area defined by location or spawn territory
 		// New method
diff --git a/L2J_Mobius_Classic_2.0_Saviors/java/org/l2jmobius/gameserver/model/WorldObject.java b/L2J_Mobius_Classic_2.0_Saviors/java/org/l2jmobius/gameserver/model/WorldObject.java
index 8cbf03fdc5..463ea7acc4 100644
--- a/L2J_Mobius_Classic_2.0_Saviors/java/org/l2jmobius/gameserver/model/WorldObject.java
+++ b/L2J_Mobius_Classic_2.0_Saviors/java/org/l2jmobius/gameserver/model/WorldObject.java
@@ -526,9 +526,13 @@ public abstract class WorldObject extends ListenersContainer implements IIdentif
 		return _worldRegion;
 	}
 	
-	public void setWorldRegion(WorldRegion value)
+	public void setWorldRegion(WorldRegion region)
 	{
-		_worldRegion = value;
+		if ((region == null) && (_worldRegion != null))
+		{
+			_worldRegion.removeVisibleObject(this);
+		}
+		_worldRegion = region;
 	}
 	
 	/**
diff --git a/L2J_Mobius_Classic_2.0_Saviors/java/org/l2jmobius/gameserver/model/actor/Creature.java b/L2J_Mobius_Classic_2.0_Saviors/java/org/l2jmobius/gameserver/model/actor/Creature.java
index 38ff78f500..8a6147c013 100644
--- a/L2J_Mobius_Classic_2.0_Saviors/java/org/l2jmobius/gameserver/model/actor/Creature.java
+++ b/L2J_Mobius_Classic_2.0_Saviors/java/org/l2jmobius/gameserver/model/actor/Creature.java
@@ -1721,15 +1721,6 @@ public abstract class Creature extends WorldObject implements ISkillsHolder, IDe
 		// Set world region to null.
 		setWorldRegion(null);
 		
-		// Reset initial monster position.
-		if (isMonster() && (((Npc) this).getSpawn() != null))
-		{
-			ThreadPool.schedule(() ->
-			{
-				setXYZ(0, 0, -10000);
-			}, 5000);
-		}
-		
 		return true;
 	}
 	
diff --git a/L2J_Mobius_Classic_2.1_Zaken/java/org/l2jmobius/gameserver/model/Spawn.java b/L2J_Mobius_Classic_2.1_Zaken/java/org/l2jmobius/gameserver/model/Spawn.java
index 05966df2cb..78c3949b5d 100644
--- a/L2J_Mobius_Classic_2.1_Zaken/java/org/l2jmobius/gameserver/model/Spawn.java
+++ b/L2J_Mobius_Classic_2.1_Zaken/java/org/l2jmobius/gameserver/model/Spawn.java
@@ -97,7 +97,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	 */
 	public Spawn(NpcTemplate template) throws SecurityException, ClassNotFoundException, NoSuchMethodException, ClassCastException
 	{
-		super(0, 0, 0);
+		super(0, 0, -10000);
 		// Set the _template of the Spawn
 		_template = template;
 		
@@ -122,7 +122,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	 */
 	public Spawn(int npcId) throws SecurityException, ClassNotFoundException, NoSuchMethodException, ClassCastException
 	{
-		super(0, 0, 0);
+		super(0, 0, -10000);
 		_template = Objects.requireNonNull(NpcData.getInstance().getTemplate(npcId), "NpcTemplate not found for NPC ID: " + npcId);
 		
 		final String className = "org.l2jmobius.gameserver.model.actor.instance." + _template.getType() + "Instance";
@@ -361,7 +361,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	{
 		int newlocx = 0;
 		int newlocy = 0;
-		int newlocz = 0;
+		int newlocz = -10000;
 		
 		// If Locx and Locy are not defined, the NpcInstance must be spawned in an area defined by location or spawn territory
 		// New method
diff --git a/L2J_Mobius_Classic_2.1_Zaken/java/org/l2jmobius/gameserver/model/WorldObject.java b/L2J_Mobius_Classic_2.1_Zaken/java/org/l2jmobius/gameserver/model/WorldObject.java
index 8cbf03fdc5..463ea7acc4 100644
--- a/L2J_Mobius_Classic_2.1_Zaken/java/org/l2jmobius/gameserver/model/WorldObject.java
+++ b/L2J_Mobius_Classic_2.1_Zaken/java/org/l2jmobius/gameserver/model/WorldObject.java
@@ -526,9 +526,13 @@ public abstract class WorldObject extends ListenersContainer implements IIdentif
 		return _worldRegion;
 	}
 	
-	public void setWorldRegion(WorldRegion value)
+	public void setWorldRegion(WorldRegion region)
 	{
-		_worldRegion = value;
+		if ((region == null) && (_worldRegion != null))
+		{
+			_worldRegion.removeVisibleObject(this);
+		}
+		_worldRegion = region;
 	}
 	
 	/**
diff --git a/L2J_Mobius_Classic_2.1_Zaken/java/org/l2jmobius/gameserver/model/actor/Creature.java b/L2J_Mobius_Classic_2.1_Zaken/java/org/l2jmobius/gameserver/model/actor/Creature.java
index 38ff78f500..8a6147c013 100644
--- a/L2J_Mobius_Classic_2.1_Zaken/java/org/l2jmobius/gameserver/model/actor/Creature.java
+++ b/L2J_Mobius_Classic_2.1_Zaken/java/org/l2jmobius/gameserver/model/actor/Creature.java
@@ -1721,15 +1721,6 @@ public abstract class Creature extends WorldObject implements ISkillsHolder, IDe
 		// Set world region to null.
 		setWorldRegion(null);
 		
-		// Reset initial monster position.
-		if (isMonster() && (((Npc) this).getSpawn() != null))
-		{
-			ThreadPool.schedule(() ->
-			{
-				setXYZ(0, 0, -10000);
-			}, 5000);
-		}
-		
 		return true;
 	}
 	
diff --git a/L2J_Mobius_Classic_2.2_Antharas/java/org/l2jmobius/gameserver/model/Spawn.java b/L2J_Mobius_Classic_2.2_Antharas/java/org/l2jmobius/gameserver/model/Spawn.java
index 05966df2cb..78c3949b5d 100644
--- a/L2J_Mobius_Classic_2.2_Antharas/java/org/l2jmobius/gameserver/model/Spawn.java
+++ b/L2J_Mobius_Classic_2.2_Antharas/java/org/l2jmobius/gameserver/model/Spawn.java
@@ -97,7 +97,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	 */
 	public Spawn(NpcTemplate template) throws SecurityException, ClassNotFoundException, NoSuchMethodException, ClassCastException
 	{
-		super(0, 0, 0);
+		super(0, 0, -10000);
 		// Set the _template of the Spawn
 		_template = template;
 		
@@ -122,7 +122,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	 */
 	public Spawn(int npcId) throws SecurityException, ClassNotFoundException, NoSuchMethodException, ClassCastException
 	{
-		super(0, 0, 0);
+		super(0, 0, -10000);
 		_template = Objects.requireNonNull(NpcData.getInstance().getTemplate(npcId), "NpcTemplate not found for NPC ID: " + npcId);
 		
 		final String className = "org.l2jmobius.gameserver.model.actor.instance." + _template.getType() + "Instance";
@@ -361,7 +361,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	{
 		int newlocx = 0;
 		int newlocy = 0;
-		int newlocz = 0;
+		int newlocz = -10000;
 		
 		// If Locx and Locy are not defined, the NpcInstance must be spawned in an area defined by location or spawn territory
 		// New method
diff --git a/L2J_Mobius_Classic_2.2_Antharas/java/org/l2jmobius/gameserver/model/WorldObject.java b/L2J_Mobius_Classic_2.2_Antharas/java/org/l2jmobius/gameserver/model/WorldObject.java
index 8cbf03fdc5..463ea7acc4 100644
--- a/L2J_Mobius_Classic_2.2_Antharas/java/org/l2jmobius/gameserver/model/WorldObject.java
+++ b/L2J_Mobius_Classic_2.2_Antharas/java/org/l2jmobius/gameserver/model/WorldObject.java
@@ -526,9 +526,13 @@ public abstract class WorldObject extends ListenersContainer implements IIdentif
 		return _worldRegion;
 	}
 	
-	public void setWorldRegion(WorldRegion value)
+	public void setWorldRegion(WorldRegion region)
 	{
-		_worldRegion = value;
+		if ((region == null) && (_worldRegion != null))
+		{
+			_worldRegion.removeVisibleObject(this);
+		}
+		_worldRegion = region;
 	}
 	
 	/**
diff --git a/L2J_Mobius_Classic_2.2_Antharas/java/org/l2jmobius/gameserver/model/actor/Creature.java b/L2J_Mobius_Classic_2.2_Antharas/java/org/l2jmobius/gameserver/model/actor/Creature.java
index 38ff78f500..8a6147c013 100644
--- a/L2J_Mobius_Classic_2.2_Antharas/java/org/l2jmobius/gameserver/model/actor/Creature.java
+++ b/L2J_Mobius_Classic_2.2_Antharas/java/org/l2jmobius/gameserver/model/actor/Creature.java
@@ -1721,15 +1721,6 @@ public abstract class Creature extends WorldObject implements ISkillsHolder, IDe
 		// Set world region to null.
 		setWorldRegion(null);
 		
-		// Reset initial monster position.
-		if (isMonster() && (((Npc) this).getSpawn() != null))
-		{
-			ThreadPool.schedule(() ->
-			{
-				setXYZ(0, 0, -10000);
-			}, 5000);
-		}
-		
 		return true;
 	}
 	
diff --git a/L2J_Mobius_Classic_2.3_SevenSigns/java/org/l2jmobius/gameserver/model/Spawn.java b/L2J_Mobius_Classic_2.3_SevenSigns/java/org/l2jmobius/gameserver/model/Spawn.java
index 05966df2cb..78c3949b5d 100644
--- a/L2J_Mobius_Classic_2.3_SevenSigns/java/org/l2jmobius/gameserver/model/Spawn.java
+++ b/L2J_Mobius_Classic_2.3_SevenSigns/java/org/l2jmobius/gameserver/model/Spawn.java
@@ -97,7 +97,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	 */
 	public Spawn(NpcTemplate template) throws SecurityException, ClassNotFoundException, NoSuchMethodException, ClassCastException
 	{
-		super(0, 0, 0);
+		super(0, 0, -10000);
 		// Set the _template of the Spawn
 		_template = template;
 		
@@ -122,7 +122,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	 */
 	public Spawn(int npcId) throws SecurityException, ClassNotFoundException, NoSuchMethodException, ClassCastException
 	{
-		super(0, 0, 0);
+		super(0, 0, -10000);
 		_template = Objects.requireNonNull(NpcData.getInstance().getTemplate(npcId), "NpcTemplate not found for NPC ID: " + npcId);
 		
 		final String className = "org.l2jmobius.gameserver.model.actor.instance." + _template.getType() + "Instance";
@@ -361,7 +361,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	{
 		int newlocx = 0;
 		int newlocy = 0;
-		int newlocz = 0;
+		int newlocz = -10000;
 		
 		// If Locx and Locy are not defined, the NpcInstance must be spawned in an area defined by location or spawn territory
 		// New method
diff --git a/L2J_Mobius_Classic_2.3_SevenSigns/java/org/l2jmobius/gameserver/model/WorldObject.java b/L2J_Mobius_Classic_2.3_SevenSigns/java/org/l2jmobius/gameserver/model/WorldObject.java
index 8cbf03fdc5..463ea7acc4 100644
--- a/L2J_Mobius_Classic_2.3_SevenSigns/java/org/l2jmobius/gameserver/model/WorldObject.java
+++ b/L2J_Mobius_Classic_2.3_SevenSigns/java/org/l2jmobius/gameserver/model/WorldObject.java
@@ -526,9 +526,13 @@ public abstract class WorldObject extends ListenersContainer implements IIdentif
 		return _worldRegion;
 	}
 	
-	public void setWorldRegion(WorldRegion value)
+	public void setWorldRegion(WorldRegion region)
 	{
-		_worldRegion = value;
+		if ((region == null) && (_worldRegion != null))
+		{
+			_worldRegion.removeVisibleObject(this);
+		}
+		_worldRegion = region;
 	}
 	
 	/**
diff --git a/L2J_Mobius_Classic_2.3_SevenSigns/java/org/l2jmobius/gameserver/model/actor/Creature.java b/L2J_Mobius_Classic_2.3_SevenSigns/java/org/l2jmobius/gameserver/model/actor/Creature.java
index 3facf4b8c0..ba2cd65a40 100644
--- a/L2J_Mobius_Classic_2.3_SevenSigns/java/org/l2jmobius/gameserver/model/actor/Creature.java
+++ b/L2J_Mobius_Classic_2.3_SevenSigns/java/org/l2jmobius/gameserver/model/actor/Creature.java
@@ -1722,15 +1722,6 @@ public abstract class Creature extends WorldObject implements ISkillsHolder, IDe
 		// Set world region to null.
 		setWorldRegion(null);
 		
-		// Reset initial monster position.
-		if (isMonster() && (((Npc) this).getSpawn() != null))
-		{
-			ThreadPool.schedule(() ->
-			{
-				setXYZ(0, 0, -10000);
-			}, 5000);
-		}
-		
 		return true;
 	}
 	
diff --git a/L2J_Mobius_Classic_2.4_SecretOfEmpire/java/org/l2jmobius/gameserver/model/Spawn.java b/L2J_Mobius_Classic_2.4_SecretOfEmpire/java/org/l2jmobius/gameserver/model/Spawn.java
index 05966df2cb..78c3949b5d 100644
--- a/L2J_Mobius_Classic_2.4_SecretOfEmpire/java/org/l2jmobius/gameserver/model/Spawn.java
+++ b/L2J_Mobius_Classic_2.4_SecretOfEmpire/java/org/l2jmobius/gameserver/model/Spawn.java
@@ -97,7 +97,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	 */
 	public Spawn(NpcTemplate template) throws SecurityException, ClassNotFoundException, NoSuchMethodException, ClassCastException
 	{
-		super(0, 0, 0);
+		super(0, 0, -10000);
 		// Set the _template of the Spawn
 		_template = template;
 		
@@ -122,7 +122,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	 */
 	public Spawn(int npcId) throws SecurityException, ClassNotFoundException, NoSuchMethodException, ClassCastException
 	{
-		super(0, 0, 0);
+		super(0, 0, -10000);
 		_template = Objects.requireNonNull(NpcData.getInstance().getTemplate(npcId), "NpcTemplate not found for NPC ID: " + npcId);
 		
 		final String className = "org.l2jmobius.gameserver.model.actor.instance." + _template.getType() + "Instance";
@@ -361,7 +361,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	{
 		int newlocx = 0;
 		int newlocy = 0;
-		int newlocz = 0;
+		int newlocz = -10000;
 		
 		// If Locx and Locy are not defined, the NpcInstance must be spawned in an area defined by location or spawn territory
 		// New method
diff --git a/L2J_Mobius_Classic_2.4_SecretOfEmpire/java/org/l2jmobius/gameserver/model/WorldObject.java b/L2J_Mobius_Classic_2.4_SecretOfEmpire/java/org/l2jmobius/gameserver/model/WorldObject.java
index 8cbf03fdc5..463ea7acc4 100644
--- a/L2J_Mobius_Classic_2.4_SecretOfEmpire/java/org/l2jmobius/gameserver/model/WorldObject.java
+++ b/L2J_Mobius_Classic_2.4_SecretOfEmpire/java/org/l2jmobius/gameserver/model/WorldObject.java
@@ -526,9 +526,13 @@ public abstract class WorldObject extends ListenersContainer implements IIdentif
 		return _worldRegion;
 	}
 	
-	public void setWorldRegion(WorldRegion value)
+	public void setWorldRegion(WorldRegion region)
 	{
-		_worldRegion = value;
+		if ((region == null) && (_worldRegion != null))
+		{
+			_worldRegion.removeVisibleObject(this);
+		}
+		_worldRegion = region;
 	}
 	
 	/**
diff --git a/L2J_Mobius_Classic_2.4_SecretOfEmpire/java/org/l2jmobius/gameserver/model/actor/Creature.java b/L2J_Mobius_Classic_2.4_SecretOfEmpire/java/org/l2jmobius/gameserver/model/actor/Creature.java
index 3facf4b8c0..ba2cd65a40 100644
--- a/L2J_Mobius_Classic_2.4_SecretOfEmpire/java/org/l2jmobius/gameserver/model/actor/Creature.java
+++ b/L2J_Mobius_Classic_2.4_SecretOfEmpire/java/org/l2jmobius/gameserver/model/actor/Creature.java
@@ -1722,15 +1722,6 @@ public abstract class Creature extends WorldObject implements ISkillsHolder, IDe
 		// Set world region to null.
 		setWorldRegion(null);
 		
-		// Reset initial monster position.
-		if (isMonster() && (((Npc) this).getSpawn() != null))
-		{
-			ThreadPool.schedule(() ->
-			{
-				setXYZ(0, 0, -10000);
-			}, 5000);
-		}
-		
 		return true;
 	}
 	
diff --git a/L2J_Mobius_Classic_3.0_TheKamael/java/org/l2jmobius/gameserver/model/Spawn.java b/L2J_Mobius_Classic_3.0_TheKamael/java/org/l2jmobius/gameserver/model/Spawn.java
index 05966df2cb..78c3949b5d 100644
--- a/L2J_Mobius_Classic_3.0_TheKamael/java/org/l2jmobius/gameserver/model/Spawn.java
+++ b/L2J_Mobius_Classic_3.0_TheKamael/java/org/l2jmobius/gameserver/model/Spawn.java
@@ -97,7 +97,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	 */
 	public Spawn(NpcTemplate template) throws SecurityException, ClassNotFoundException, NoSuchMethodException, ClassCastException
 	{
-		super(0, 0, 0);
+		super(0, 0, -10000);
 		// Set the _template of the Spawn
 		_template = template;
 		
@@ -122,7 +122,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	 */
 	public Spawn(int npcId) throws SecurityException, ClassNotFoundException, NoSuchMethodException, ClassCastException
 	{
-		super(0, 0, 0);
+		super(0, 0, -10000);
 		_template = Objects.requireNonNull(NpcData.getInstance().getTemplate(npcId), "NpcTemplate not found for NPC ID: " + npcId);
 		
 		final String className = "org.l2jmobius.gameserver.model.actor.instance." + _template.getType() + "Instance";
@@ -361,7 +361,7 @@ public class Spawn extends Location implements IIdentifiable, INamable
 	{
 		int newlocx = 0;
 		int newlocy = 0;
-		int newlocz = 0;
+		int newlocz = -10000;
 		
 		// If Locx and Locy are not defined, the NpcInstance must be spawned in an area defined by location or spawn territory
 		// New method
diff --git a/L2J_Mobius_Classic_3.0_TheKamael/java/org/l2jmobius/gameserver/model/WorldObject.java b/L2J_Mobius_Classic_3.0_TheKamael/java/org/l2jmobius/gameserver/model/WorldObject.java
index 8cbf03fdc5..463ea7acc4 100644
--- a/L2J_Mobius_Classic_3.0_TheKamael/java/org/l2jmobius/gameserver/model/WorldObject.java
+++ b/L2J_Mobius_Classic_3.0_TheKamael/java/org/l2jmobius/gameserver/model/WorldObject.java
@@ -526,9 +526,13 @@ public abstract class WorldObject extends ListenersContainer implements IIdentif
 		return _worldRegion;
 	}
 	
-	public void setWorldRegion(WorldRegion value)
+	public void setWorldRegion(WorldRegion region)
 	{
-		_worldRegion = value;
+		if ((region == null) && (_worldRegion != null))
+		{
+			_worldRegion.removeVisibleObject(this);
+		}
+		_worldRegion = region;
 	}
 	
 	/**
diff --git a/L2J_Mobius_Classic_3.0_TheKamael/java/org/l2jmobius/gameserver/model/actor/Creature.java b/L2J_Mobius_Classic_3.0_TheKamael/java/org/l2jmobius/gameserver/model/actor/Creature.java
index 8c066bbdba..63e2c1f387 100644
--- a/L2J_Mobius_Classic_3.0_TheKamael/java/org/l2jmobius/gameserver/model/actor/Creature.java
+++ b/L2J_Mobius_Classic_3.0_TheKamael/java/org/l2jmobius/gameserver/model/actor/Creature.java
@@ -1722,15 +1722,6 @@ public abstract class Creature extends WorldObject implements ISkillsHolder, IDe
 		// Set world region to null.
 		setWorldRegion(null);
 		
-		// Reset initial monster position.
-		if (isMonster() && (((Npc) this).getSpawn() != null))
-		{
-			ThreadPool.schedule(() ->
-			{
-				setXYZ(0, 0, -10000);
-			}, 5000);
-		}
-		
 		return true;
 	}