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 21c2b257db..6ca32e5eb6 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
@@ -5461,9 +5461,13 @@ public abstract class Creature extends WorldObject implements ISkillsHolder, IDe
 		
 		World.getInstance().forEachVisibleObjectInRange(this, Creature.class, _seenCreatureRange, creature ->
 		{
-			if (!creature.isInvisible() && _seenCreatures.add(creature))
+			if (!creature.isInvisible())
 			{
-				EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				final WorldRegion worldRegion = getWorldRegion();
+				if ((worldRegion != null) && worldRegion.areNeighborsActive() && _seenCreatures.add(creature))
+				{
+					EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				}
 			}
 		});
 	}
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 21c2b257db..6ca32e5eb6 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
@@ -5461,9 +5461,13 @@ public abstract class Creature extends WorldObject implements ISkillsHolder, IDe
 		
 		World.getInstance().forEachVisibleObjectInRange(this, Creature.class, _seenCreatureRange, creature ->
 		{
-			if (!creature.isInvisible() && _seenCreatures.add(creature))
+			if (!creature.isInvisible())
 			{
-				EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				final WorldRegion worldRegion = getWorldRegion();
+				if ((worldRegion != null) && worldRegion.areNeighborsActive() && _seenCreatures.add(creature))
+				{
+					EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				}
 			}
 		});
 	}
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 e5fdaba718..b3c9eb8bca 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
@@ -5461,9 +5461,13 @@ public abstract class Creature extends WorldObject implements ISkillsHolder, IDe
 		
 		World.getInstance().forEachVisibleObjectInRange(this, Creature.class, _seenCreatureRange, creature ->
 		{
-			if (!creature.isInvisible() && _seenCreatures.add(creature))
+			if (!creature.isInvisible())
 			{
-				EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				final WorldRegion worldRegion = getWorldRegion();
+				if ((worldRegion != null) && worldRegion.areNeighborsActive() && _seenCreatures.add(creature))
+				{
+					EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				}
 			}
 		});
 	}
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 e5fdaba718..b3c9eb8bca 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
@@ -5461,9 +5461,13 @@ public abstract class Creature extends WorldObject implements ISkillsHolder, IDe
 		
 		World.getInstance().forEachVisibleObjectInRange(this, Creature.class, _seenCreatureRange, creature ->
 		{
-			if (!creature.isInvisible() && _seenCreatures.add(creature))
+			if (!creature.isInvisible())
 			{
-				EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				final WorldRegion worldRegion = getWorldRegion();
+				if ((worldRegion != null) && worldRegion.areNeighborsActive() && _seenCreatures.add(creature))
+				{
+					EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				}
 			}
 		});
 	}
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 c65a2bc546..eb0cc6a4d6 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
@@ -5470,9 +5470,13 @@ public abstract class Creature extends WorldObject implements ISkillsHolder, IDe
 		
 		World.getInstance().forEachVisibleObjectInRange(this, Creature.class, _seenCreatureRange, creature ->
 		{
-			if (!creature.isInvisible() && _seenCreatures.add(creature))
+			if (!creature.isInvisible())
 			{
-				EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				final WorldRegion worldRegion = getWorldRegion();
+				if ((worldRegion != null) && worldRegion.areNeighborsActive() && _seenCreatures.add(creature))
+				{
+					EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				}
 			}
 		});
 	}
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 c65a2bc546..eb0cc6a4d6 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
@@ -5470,9 +5470,13 @@ public abstract class Creature extends WorldObject implements ISkillsHolder, IDe
 		
 		World.getInstance().forEachVisibleObjectInRange(this, Creature.class, _seenCreatureRange, creature ->
 		{
-			if (!creature.isInvisible() && _seenCreatures.add(creature))
+			if (!creature.isInvisible())
 			{
-				EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				final WorldRegion worldRegion = getWorldRegion();
+				if ((worldRegion != null) && worldRegion.areNeighborsActive() && _seenCreatures.add(creature))
+				{
+					EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				}
 			}
 		});
 	}
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 c65a2bc546..eb0cc6a4d6 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
@@ -5470,9 +5470,13 @@ public abstract class Creature extends WorldObject implements ISkillsHolder, IDe
 		
 		World.getInstance().forEachVisibleObjectInRange(this, Creature.class, _seenCreatureRange, creature ->
 		{
-			if (!creature.isInvisible() && _seenCreatures.add(creature))
+			if (!creature.isInvisible())
 			{
-				EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				final WorldRegion worldRegion = getWorldRegion();
+				if ((worldRegion != null) && worldRegion.areNeighborsActive() && _seenCreatures.add(creature))
+				{
+					EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				}
 			}
 		});
 	}
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 cf9d421028..1a951a259b 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
@@ -5469,9 +5469,13 @@ public abstract class Creature extends WorldObject implements ISkillsHolder, IDe
 		
 		World.getInstance().forEachVisibleObjectInRange(this, Creature.class, _seenCreatureRange, creature ->
 		{
-			if (!creature.isInvisible() && _seenCreatures.add(creature))
+			if (!creature.isInvisible())
 			{
-				EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				final WorldRegion worldRegion = getWorldRegion();
+				if ((worldRegion != null) && worldRegion.areNeighborsActive() && _seenCreatures.add(creature))
+				{
+					EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				}
 			}
 		});
 	}
diff --git a/L2J_Mobius_8.0_Homunculus/java/org/l2jmobius/gameserver/model/actor/Creature.java b/L2J_Mobius_8.0_Homunculus/java/org/l2jmobius/gameserver/model/actor/Creature.java
index ae9a6c1e8d..5a3f2a2dd6 100644
--- a/L2J_Mobius_8.0_Homunculus/java/org/l2jmobius/gameserver/model/actor/Creature.java
+++ b/L2J_Mobius_8.0_Homunculus/java/org/l2jmobius/gameserver/model/actor/Creature.java
@@ -5469,9 +5469,13 @@ public abstract class Creature extends WorldObject implements ISkillsHolder, IDe
 		
 		World.getInstance().forEachVisibleObjectInRange(this, Creature.class, _seenCreatureRange, creature ->
 		{
-			if (!creature.isInvisible() && _seenCreatures.add(creature))
+			if (!creature.isInvisible())
 			{
-				EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				final WorldRegion worldRegion = getWorldRegion();
+				if ((worldRegion != null) && worldRegion.areNeighborsActive() && _seenCreatures.add(creature))
+				{
+					EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				}
 			}
 		});
 	}
diff --git a/L2J_Mobius_9.0_ReturnOfTheQueenAnt/java/org/l2jmobius/gameserver/model/actor/Creature.java b/L2J_Mobius_9.0_ReturnOfTheQueenAnt/java/org/l2jmobius/gameserver/model/actor/Creature.java
index ae9a6c1e8d..5a3f2a2dd6 100644
--- a/L2J_Mobius_9.0_ReturnOfTheQueenAnt/java/org/l2jmobius/gameserver/model/actor/Creature.java
+++ b/L2J_Mobius_9.0_ReturnOfTheQueenAnt/java/org/l2jmobius/gameserver/model/actor/Creature.java
@@ -5469,9 +5469,13 @@ public abstract class Creature extends WorldObject implements ISkillsHolder, IDe
 		
 		World.getInstance().forEachVisibleObjectInRange(this, Creature.class, _seenCreatureRange, creature ->
 		{
-			if (!creature.isInvisible() && _seenCreatures.add(creature))
+			if (!creature.isInvisible())
 			{
-				EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				final WorldRegion worldRegion = getWorldRegion();
+				if ((worldRegion != null) && worldRegion.areNeighborsActive() && _seenCreatures.add(creature))
+				{
+					EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				}
 			}
 		});
 	}
diff --git a/L2J_Mobius_CT_2.4_Epilogue/java/org/l2jmobius/gameserver/model/actor/Creature.java b/L2J_Mobius_CT_2.4_Epilogue/java/org/l2jmobius/gameserver/model/actor/Creature.java
index 001d732991..0d86cacf8b 100644
--- a/L2J_Mobius_CT_2.4_Epilogue/java/org/l2jmobius/gameserver/model/actor/Creature.java
+++ b/L2J_Mobius_CT_2.4_Epilogue/java/org/l2jmobius/gameserver/model/actor/Creature.java
@@ -6794,9 +6794,13 @@ public abstract class Creature extends WorldObject implements ISkillsHolder, IDe
 		
 		World.getInstance().forEachVisibleObjectInRange(this, Creature.class, _seenCreatureRange, creature ->
 		{
-			if (!creature.isInvisible() && _seenCreatures.add(creature))
+			if (!creature.isInvisible())
 			{
-				EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				final WorldRegion worldRegion = getWorldRegion();
+				if ((worldRegion != null) && worldRegion.areNeighborsActive() && _seenCreatures.add(creature))
+				{
+					EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				}
 			}
 		});
 	}
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 25eb22b786..c96117ecf0 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
@@ -6796,9 +6796,13 @@ public abstract class Creature extends WorldObject implements ISkillsHolder, IDe
 		
 		World.getInstance().forEachVisibleObjectInRange(this, Creature.class, _seenCreatureRange, creature ->
 		{
-			if (!creature.isInvisible() && _seenCreatures.add(creature))
+			if (!creature.isInvisible())
 			{
-				EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				final WorldRegion worldRegion = getWorldRegion();
+				if ((worldRegion != null) && worldRegion.areNeighborsActive() && _seenCreatures.add(creature))
+				{
+					EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				}
 			}
 		});
 	}
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 3d8afebfae..8ed8ef9f6f 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
@@ -5460,9 +5460,13 @@ public abstract class Creature extends WorldObject implements ISkillsHolder, IDe
 		
 		World.getInstance().forEachVisibleObjectInRange(this, Creature.class, _seenCreatureRange, creature ->
 		{
-			if (!creature.isInvisible() && _seenCreatures.add(creature))
+			if (!creature.isInvisible())
 			{
-				EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				final WorldRegion worldRegion = getWorldRegion();
+				if ((worldRegion != null) && worldRegion.areNeighborsActive() && _seenCreatures.add(creature))
+				{
+					EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				}
 			}
 		});
 	}
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 3d8afebfae..8ed8ef9f6f 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
@@ -5460,9 +5460,13 @@ public abstract class Creature extends WorldObject implements ISkillsHolder, IDe
 		
 		World.getInstance().forEachVisibleObjectInRange(this, Creature.class, _seenCreatureRange, creature ->
 		{
-			if (!creature.isInvisible() && _seenCreatures.add(creature))
+			if (!creature.isInvisible())
 			{
-				EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				final WorldRegion worldRegion = getWorldRegion();
+				if ((worldRegion != null) && worldRegion.areNeighborsActive() && _seenCreatures.add(creature))
+				{
+					EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				}
 			}
 		});
 	}
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 837b667fed..9cb35298f0 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
@@ -5469,9 +5469,13 @@ public abstract class Creature extends WorldObject implements ISkillsHolder, IDe
 		
 		World.getInstance().forEachVisibleObjectInRange(this, Creature.class, _seenCreatureRange, creature ->
 		{
-			if (!creature.isInvisible() && _seenCreatures.add(creature))
+			if (!creature.isInvisible())
 			{
-				EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				final WorldRegion worldRegion = getWorldRegion();
+				if ((worldRegion != null) && worldRegion.areNeighborsActive() && _seenCreatures.add(creature))
+				{
+					EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				}
 			}
 		});
 	}
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 d6828d9647..0fc8560378 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
@@ -5494,9 +5494,13 @@ public abstract class Creature extends WorldObject implements ISkillsHolder, IDe
 		
 		World.getInstance().forEachVisibleObjectInRange(this, Creature.class, _seenCreatureRange, creature ->
 		{
-			if (!creature.isInvisible() && _seenCreatures.add(creature))
+			if (!creature.isInvisible())
 			{
-				EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				final WorldRegion worldRegion = getWorldRegion();
+				if ((worldRegion != null) && worldRegion.areNeighborsActive() && _seenCreatures.add(creature))
+				{
+					EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				}
 			}
 		});
 	}
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 d6828d9647..0fc8560378 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
@@ -5494,9 +5494,13 @@ public abstract class Creature extends WorldObject implements ISkillsHolder, IDe
 		
 		World.getInstance().forEachVisibleObjectInRange(this, Creature.class, _seenCreatureRange, creature ->
 		{
-			if (!creature.isInvisible() && _seenCreatures.add(creature))
+			if (!creature.isInvisible())
 			{
-				EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				final WorldRegion worldRegion = getWorldRegion();
+				if ((worldRegion != null) && worldRegion.areNeighborsActive() && _seenCreatures.add(creature))
+				{
+					EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				}
 			}
 		});
 	}
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 e6610d6fc3..ad69ca6e69 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
@@ -5493,9 +5493,13 @@ public abstract class Creature extends WorldObject implements ISkillsHolder, IDe
 		
 		World.getInstance().forEachVisibleObjectInRange(this, Creature.class, _seenCreatureRange, creature ->
 		{
-			if (!creature.isInvisible() && _seenCreatures.add(creature))
+			if (!creature.isInvisible())
 			{
-				EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				final WorldRegion worldRegion = getWorldRegion();
+				if ((worldRegion != null) && worldRegion.areNeighborsActive() && _seenCreatures.add(creature))
+				{
+					EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				}
 			}
 		});
 	}
diff --git a/L2J_Mobius_Classic_Interlude/java/org/l2jmobius/gameserver/model/actor/Creature.java b/L2J_Mobius_Classic_Interlude/java/org/l2jmobius/gameserver/model/actor/Creature.java
index 3d8afebfae..8ed8ef9f6f 100644
--- a/L2J_Mobius_Classic_Interlude/java/org/l2jmobius/gameserver/model/actor/Creature.java
+++ b/L2J_Mobius_Classic_Interlude/java/org/l2jmobius/gameserver/model/actor/Creature.java
@@ -5460,9 +5460,13 @@ public abstract class Creature extends WorldObject implements ISkillsHolder, IDe
 		
 		World.getInstance().forEachVisibleObjectInRange(this, Creature.class, _seenCreatureRange, creature ->
 		{
-			if (!creature.isInvisible() && _seenCreatures.add(creature))
+			if (!creature.isInvisible())
 			{
-				EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				final WorldRegion worldRegion = getWorldRegion();
+				if ((worldRegion != null) && worldRegion.areNeighborsActive() && _seenCreatures.add(creature))
+				{
+					EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				}
 			}
 		});
 	}
diff --git a/L2J_Mobius_Essence_4.0_DwellingOfSpirits/java/org/l2jmobius/gameserver/model/actor/Creature.java b/L2J_Mobius_Essence_4.0_DwellingOfSpirits/java/org/l2jmobius/gameserver/model/actor/Creature.java
index 26307f813a..ca7a9249c0 100644
--- a/L2J_Mobius_Essence_4.0_DwellingOfSpirits/java/org/l2jmobius/gameserver/model/actor/Creature.java
+++ b/L2J_Mobius_Essence_4.0_DwellingOfSpirits/java/org/l2jmobius/gameserver/model/actor/Creature.java
@@ -5503,9 +5503,13 @@ public abstract class Creature extends WorldObject implements ISkillsHolder, IDe
 		
 		World.getInstance().forEachVisibleObjectInRange(this, Creature.class, _seenCreatureRange, creature ->
 		{
-			if (!creature.isInvisible() && _seenCreatures.add(creature))
+			if (!creature.isInvisible())
 			{
-				EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				final WorldRegion worldRegion = getWorldRegion();
+				if ((worldRegion != null) && worldRegion.areNeighborsActive() && _seenCreatures.add(creature))
+				{
+					EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				}
 			}
 		});
 	}
diff --git a/L2J_Mobius_Essence_5.0_Sylph/java/org/l2jmobius/gameserver/model/actor/Creature.java b/L2J_Mobius_Essence_5.0_Sylph/java/org/l2jmobius/gameserver/model/actor/Creature.java
index e15ba3067b..91743dece7 100644
--- a/L2J_Mobius_Essence_5.0_Sylph/java/org/l2jmobius/gameserver/model/actor/Creature.java
+++ b/L2J_Mobius_Essence_5.0_Sylph/java/org/l2jmobius/gameserver/model/actor/Creature.java
@@ -5510,9 +5510,13 @@ public abstract class Creature extends WorldObject implements ISkillsHolder, IDe
 		
 		World.getInstance().forEachVisibleObjectInRange(this, Creature.class, _seenCreatureRange, creature ->
 		{
-			if (!creature.isInvisible() && _seenCreatures.add(creature))
+			if (!creature.isInvisible())
 			{
-				EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				final WorldRegion worldRegion = getWorldRegion();
+				if ((worldRegion != null) && worldRegion.areNeighborsActive() && _seenCreatures.add(creature))
+				{
+					EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				}
 			}
 		});
 	}
diff --git a/L2J_Mobius_Essence_5.5_FrostLord/java/org/l2jmobius/gameserver/model/actor/Creature.java b/L2J_Mobius_Essence_5.5_FrostLord/java/org/l2jmobius/gameserver/model/actor/Creature.java
index e15ba3067b..91743dece7 100644
--- a/L2J_Mobius_Essence_5.5_FrostLord/java/org/l2jmobius/gameserver/model/actor/Creature.java
+++ b/L2J_Mobius_Essence_5.5_FrostLord/java/org/l2jmobius/gameserver/model/actor/Creature.java
@@ -5510,9 +5510,13 @@ public abstract class Creature extends WorldObject implements ISkillsHolder, IDe
 		
 		World.getInstance().forEachVisibleObjectInRange(this, Creature.class, _seenCreatureRange, creature ->
 		{
-			if (!creature.isInvisible() && _seenCreatures.add(creature))
+			if (!creature.isInvisible())
 			{
-				EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				final WorldRegion worldRegion = getWorldRegion();
+				if ((worldRegion != null) && worldRegion.areNeighborsActive() && _seenCreatures.add(creature))
+				{
+					EventDispatcher.getInstance().notifyEventAsync(new OnCreatureSee(this, creature), this);
+				}
 			}
 		});
 	}