diff --git a/src/main/java/meteordevelopment/meteorclient/events/world/CollisionShapeEvent.java b/src/main/java/meteordevelopment/meteorclient/events/world/CollisionShapeEvent.java
index c4aaea97eb..b759780555 100644
--- a/src/main/java/meteordevelopment/meteorclient/events/world/CollisionShapeEvent.java
+++ b/src/main/java/meteordevelopment/meteorclient/events/world/CollisionShapeEvent.java
@@ -5,6 +5,7 @@
 
 package meteordevelopment.meteorclient.events.world;
 
+import com.mojang.blaze3d.systems.RenderSystem;
 import meteordevelopment.meteorclient.events.Cancellable;
 import net.minecraft.block.BlockState;
 import net.minecraft.util.math.BlockPos;
@@ -18,10 +19,17 @@ public class CollisionShapeEvent extends Cancellable {
     public VoxelShape shape;
 
     public static CollisionShapeEvent get(BlockState state, BlockPos pos, VoxelShape shape) {
-        INSTANCE.setCancelled(false);
-        INSTANCE.state = state;
-        INSTANCE.pos = pos;
-        INSTANCE.shape = shape;
-        return INSTANCE;
+        CollisionShapeEvent event = INSTANCE;
+
+        if (!RenderSystem.isOnRenderThread()) {
+            event = new CollisionShapeEvent();
+        }
+
+        event.setCancelled(false);
+        event.state = state;
+        event.pos = pos;
+        event.shape = shape;
+
+        return event;
     }
 }
diff --git a/src/main/java/meteordevelopment/meteorclient/mixin/BlockCollisionSpliteratorMixin.java b/src/main/java/meteordevelopment/meteorclient/mixin/BlockCollisionSpliteratorMixin.java
index 026acc0e73..f51dc897b0 100644
--- a/src/main/java/meteordevelopment/meteorclient/mixin/BlockCollisionSpliteratorMixin.java
+++ b/src/main/java/meteordevelopment/meteorclient/mixin/BlockCollisionSpliteratorMixin.java
@@ -9,6 +9,7 @@
 import meteordevelopment.meteorclient.events.world.CollisionShapeEvent;
 import net.minecraft.block.BlockState;
 import net.minecraft.block.ShapeContext;
+import net.minecraft.client.MinecraftClient;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.shape.VoxelShape;
 import net.minecraft.util.shape.VoxelShapes;
@@ -22,7 +23,12 @@
 public class BlockCollisionSpliteratorMixin {
     @Redirect(method = "computeNext", at = @At(value = "INVOKE", target = "Lnet/minecraft/block/BlockState;getCollisionShape(Lnet/minecraft/world/BlockView;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/block/ShapeContext;)Lnet/minecraft/util/shape/VoxelShape;"))
     private VoxelShape onComputeNextCollisionBox(BlockState state, BlockView world, BlockPos pos, ShapeContext context) {
-        CollisionShapeEvent event = MeteorClient.EVENT_BUS.post(CollisionShapeEvent.get(state, pos, state.getCollisionShape(world, pos, context)));
+        VoxelShape shape = state.getCollisionShape(world, pos, context);
+
+        if (world != MinecraftClient.getInstance().world)
+            return shape;
+
+        CollisionShapeEvent event = MeteorClient.EVENT_BUS.post(CollisionShapeEvent.get(state, pos, shape));
         return event.isCancelled() ? VoxelShapes.empty() : event.shape;
     }
 }
diff --git a/src/main/java/meteordevelopment/meteorclient/mixin/lithium/ChunkAwareBlockCollisionSweeperMixin.java b/src/main/java/meteordevelopment/meteorclient/mixin/lithium/ChunkAwareBlockCollisionSweeperMixin.java
index 1ada66b788..eb15d0e2b1 100644
--- a/src/main/java/meteordevelopment/meteorclient/mixin/lithium/ChunkAwareBlockCollisionSweeperMixin.java
+++ b/src/main/java/meteordevelopment/meteorclient/mixin/lithium/ChunkAwareBlockCollisionSweeperMixin.java
@@ -10,6 +10,7 @@
 import meteordevelopment.meteorclient.events.world.CollisionShapeEvent;
 import net.minecraft.block.BlockState;
 import net.minecraft.block.ShapeContext;
+import net.minecraft.client.MinecraftClient;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.shape.VoxelShape;
 import net.minecraft.util.shape.VoxelShapes;
@@ -22,7 +23,12 @@
 public abstract class ChunkAwareBlockCollisionSweeperMixin {
     @Redirect(method = "computeNext", at = @At(value = "INVOKE", target = "Lnet/minecraft/block/BlockState;getCollisionShape(Lnet/minecraft/world/BlockView;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/block/ShapeContext;)Lnet/minecraft/util/shape/VoxelShape;"))
     private VoxelShape onComputeNextCollisionBox(BlockState state, BlockView world, BlockPos pos, ShapeContext context) {
-        CollisionShapeEvent event = MeteorClient.EVENT_BUS.post(CollisionShapeEvent.get(state, pos, state.getCollisionShape(world, pos, context)));
+        VoxelShape shape = state.getCollisionShape(world, pos, context);
+
+        if (world != MinecraftClient.getInstance().world)
+            return shape;
+
+        CollisionShapeEvent event = MeteorClient.EVENT_BUS.post(CollisionShapeEvent.get(state, pos, shape));
         return event.isCancelled() ? VoxelShapes.empty() : event.shape;
     }
 }