diff --git a/nms/v1_19_R1/src/main/java/com/volmit/iris/core/nms/v1_19_R1/MemoryWorld.java b/nms/v1_19_R1/src/main/java/com/volmit/iris/core/nms/v1_19_R1/MemoryWorld.java
index 124afa8eb..20ac7f44f 100644
--- a/nms/v1_19_R1/src/main/java/com/volmit/iris/core/nms/v1_19_R1/MemoryWorld.java
+++ b/nms/v1_19_R1/src/main/java/com/volmit/iris/core/nms/v1_19_R1/MemoryWorld.java
@@ -40,6 +40,7 @@ import org.bukkit.craftbukkit.v1_19_R1.generator.CraftWorldInfo;
 import org.bukkit.craftbukkit.v1_19_R1.util.CraftMagicNumbers;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.EventPriority;
+import org.bukkit.event.HandlerList;
 import org.bukkit.event.world.WorldUnloadEvent;
 import org.bukkit.generator.ChunkGenerator;
 import org.bukkit.material.MaterialData;
@@ -165,6 +166,7 @@ public class MemoryWorld implements IMemoryWorld {
         var map = (Map<String, World>) WORLDS_FIELD.get(Bukkit.getServer());
         map.remove(level.dimension().location().getPath());
         getServer().removeLevel(level);
+        HandlerList.unregisterAll(this);
     }
 
     private static MinecraftServer getServer() {
diff --git a/nms/v1_19_R2/src/main/java/com/volmit/iris/core/nms/v1_19_R2/MemoryWorld.java b/nms/v1_19_R2/src/main/java/com/volmit/iris/core/nms/v1_19_R2/MemoryWorld.java
index 554cb4274..394965eae 100644
--- a/nms/v1_19_R2/src/main/java/com/volmit/iris/core/nms/v1_19_R2/MemoryWorld.java
+++ b/nms/v1_19_R2/src/main/java/com/volmit/iris/core/nms/v1_19_R2/MemoryWorld.java
@@ -44,6 +44,7 @@ import org.bukkit.craftbukkit.v1_19_R2.generator.CraftWorldInfo;
 import org.bukkit.craftbukkit.v1_19_R2.util.CraftMagicNumbers;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.EventPriority;
+import org.bukkit.event.HandlerList;
 import org.bukkit.event.world.WorldUnloadEvent;
 import org.bukkit.generator.ChunkGenerator;
 import org.bukkit.material.MaterialData;
@@ -173,6 +174,7 @@ public class MemoryWorld implements IMemoryWorld {
         var map = (Map<String, World>) WORLDS_FIELD.get(Bukkit.getServer());
         map.remove(level.dimension().location().getPath());
         getServer().removeLevel(level);
+        HandlerList.unregisterAll(this);
     }
 
     private static MinecraftServer getServer() {
diff --git a/nms/v1_19_R3/src/main/java/com/volmit/iris/core/nms/v1_19_R3/MemoryWorld.java b/nms/v1_19_R3/src/main/java/com/volmit/iris/core/nms/v1_19_R3/MemoryWorld.java
index 32e0d00ad..f3d59a64b 100644
--- a/nms/v1_19_R3/src/main/java/com/volmit/iris/core/nms/v1_19_R3/MemoryWorld.java
+++ b/nms/v1_19_R3/src/main/java/com/volmit/iris/core/nms/v1_19_R3/MemoryWorld.java
@@ -44,6 +44,7 @@ import org.bukkit.craftbukkit.v1_19_R3.generator.CraftWorldInfo;
 import org.bukkit.craftbukkit.v1_19_R3.util.CraftMagicNumbers;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.EventPriority;
+import org.bukkit.event.HandlerList;
 import org.bukkit.event.world.WorldUnloadEvent;
 import org.bukkit.generator.ChunkGenerator;
 import org.bukkit.material.MaterialData;
@@ -173,6 +174,7 @@ public class MemoryWorld implements IMemoryWorld {
         var map = (Map<String, World>) WORLDS_FIELD.get(Bukkit.getServer());
         map.remove(level.dimension().location().getPath());
         getServer().removeLevel(level);
+        HandlerList.unregisterAll(this);
     }
 
     private static MinecraftServer getServer() {
diff --git a/nms/v1_20_R1/src/main/java/com/volmit/iris/core/nms/v1_20_R1/MemoryWorld.java b/nms/v1_20_R1/src/main/java/com/volmit/iris/core/nms/v1_20_R1/MemoryWorld.java
index ee77a6d76..0bf76e41e 100644
--- a/nms/v1_20_R1/src/main/java/com/volmit/iris/core/nms/v1_20_R1/MemoryWorld.java
+++ b/nms/v1_20_R1/src/main/java/com/volmit/iris/core/nms/v1_20_R1/MemoryWorld.java
@@ -44,6 +44,7 @@ import org.bukkit.craftbukkit.v1_20_R1.generator.CraftWorldInfo;
 import org.bukkit.craftbukkit.v1_20_R1.util.CraftMagicNumbers;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.EventPriority;
+import org.bukkit.event.HandlerList;
 import org.bukkit.event.world.WorldUnloadEvent;
 import org.bukkit.generator.ChunkGenerator;
 import org.bukkit.material.MaterialData;
@@ -174,6 +175,7 @@ public class MemoryWorld implements IMemoryWorld {
         var map = (Map<String, World>) WORLDS_FIELD.get(Bukkit.getServer());
         map.remove(level.dimension().location().getPath());
         getServer().removeLevel(level);
+        HandlerList.unregisterAll(this);
     }
 
     private static MinecraftServer getServer() {
diff --git a/nms/v1_20_R2/src/main/java/com/volmit/iris/core/nms/v1_20_R2/MemoryWorld.java b/nms/v1_20_R2/src/main/java/com/volmit/iris/core/nms/v1_20_R2/MemoryWorld.java
index a893fa6ce..56e730e07 100644
--- a/nms/v1_20_R2/src/main/java/com/volmit/iris/core/nms/v1_20_R2/MemoryWorld.java
+++ b/nms/v1_20_R2/src/main/java/com/volmit/iris/core/nms/v1_20_R2/MemoryWorld.java
@@ -44,6 +44,7 @@ import org.bukkit.craftbukkit.v1_20_R2.generator.CraftWorldInfo;
 import org.bukkit.craftbukkit.v1_20_R2.util.CraftMagicNumbers;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.EventPriority;
+import org.bukkit.event.HandlerList;
 import org.bukkit.event.world.WorldUnloadEvent;
 import org.bukkit.generator.ChunkGenerator;
 import org.bukkit.material.MaterialData;
@@ -174,6 +175,7 @@ public class MemoryWorld implements IMemoryWorld {
         var map = (Map<String, World>) WORLDS_FIELD.get(Bukkit.getServer());
         map.remove(level.dimension().location().getPath());
         getServer().removeLevel(level);
+        HandlerList.unregisterAll(this);
     }
 
     private static MinecraftServer getServer() {
diff --git a/nms/v1_20_R3/src/main/java/com/volmit/iris/core/nms/v1_20_R3/MemoryWorld.java b/nms/v1_20_R3/src/main/java/com/volmit/iris/core/nms/v1_20_R3/MemoryWorld.java
index 4eafe7af6..77c56e5d5 100644
--- a/nms/v1_20_R3/src/main/java/com/volmit/iris/core/nms/v1_20_R3/MemoryWorld.java
+++ b/nms/v1_20_R3/src/main/java/com/volmit/iris/core/nms/v1_20_R3/MemoryWorld.java
@@ -46,6 +46,7 @@ import org.bukkit.craftbukkit.v1_20_R3.generator.CraftWorldInfo;
 import org.bukkit.craftbukkit.v1_20_R3.util.CraftMagicNumbers;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.EventPriority;
+import org.bukkit.event.HandlerList;
 import org.bukkit.event.Listener;
 import org.bukkit.event.world.WorldUnloadEvent;
 import org.bukkit.generator.ChunkGenerator;
@@ -178,6 +179,7 @@ public class MemoryWorld implements IMemoryWorld {
         var map = (Map<String, World>) WORLDS_FIELD.get(Bukkit.getServer());
         map.remove(level.dimension().location().getPath());
         getServer().removeLevel(level);
+        HandlerList.unregisterAll(this);
     }
 
     private static MinecraftServer getServer() {
diff --git a/nms/v1_20_R4/src/main/java/com/volmit/iris/core/nms/v1_20_R4/MemoryWorld.java b/nms/v1_20_R4/src/main/java/com/volmit/iris/core/nms/v1_20_R4/MemoryWorld.java
index 94d3068fb..575f7b05c 100644
--- a/nms/v1_20_R4/src/main/java/com/volmit/iris/core/nms/v1_20_R4/MemoryWorld.java
+++ b/nms/v1_20_R4/src/main/java/com/volmit/iris/core/nms/v1_20_R4/MemoryWorld.java
@@ -45,6 +45,7 @@ import org.bukkit.craftbukkit.v1_20_R4.generator.CraftWorldInfo;
 import org.bukkit.craftbukkit.v1_20_R4.util.CraftMagicNumbers;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.EventPriority;
+import org.bukkit.event.HandlerList;
 import org.bukkit.event.world.WorldUnloadEvent;
 import org.bukkit.generator.ChunkGenerator;
 import org.bukkit.material.MaterialData;
@@ -175,6 +176,7 @@ public class MemoryWorld implements IMemoryWorld {
         var map = (Map<String, World>) WORLDS_FIELD.get(Bukkit.getServer());
         map.remove(level.dimension().location().getPath());
         getServer().removeLevel(level);
+        HandlerList.unregisterAll(this);
     }
 
     private static MinecraftServer getServer() {
diff --git a/nms/v1_21_R1/src/main/java/com/volmit/iris/core/nms/v1_21_R1/MemoryWorld.java b/nms/v1_21_R1/src/main/java/com/volmit/iris/core/nms/v1_21_R1/MemoryWorld.java
index 11297a1b9..0298912c2 100644
--- a/nms/v1_21_R1/src/main/java/com/volmit/iris/core/nms/v1_21_R1/MemoryWorld.java
+++ b/nms/v1_21_R1/src/main/java/com/volmit/iris/core/nms/v1_21_R1/MemoryWorld.java
@@ -45,6 +45,7 @@ import org.bukkit.craftbukkit.v1_21_R1.generator.CraftWorldInfo;
 import org.bukkit.craftbukkit.v1_21_R1.util.CraftMagicNumbers;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.EventPriority;
+import org.bukkit.event.HandlerList;
 import org.bukkit.event.world.WorldUnloadEvent;
 import org.bukkit.generator.ChunkGenerator;
 import org.bukkit.material.MaterialData;
@@ -175,6 +176,7 @@ public class MemoryWorld implements IMemoryWorld {
         var map = (Map<String, World>) WORLDS_FIELD.get(Bukkit.getServer());
         map.remove(level.dimension().location().getPath());
         getServer().removeLevel(level);
+        HandlerList.unregisterAll(this);
     }
 
     private static MinecraftServer getServer() {