--- a/net/minecraft/world/entity/projectile/ThrowableProjectile.java
+++ b/net/minecraft/world/entity/projectile/ThrowableProjectile.java
@@ -43,6 +_,11 @@
 
     @Override
     public void tick() {
+        // Folia start - region threading - make sure entities do not move into regions they do not own
+        if (!ca.spottedleaf.moonrise.common.util.TickThread.isTickThreadFor((net.minecraft.server.level.ServerLevel)this.level(), this.position(), this.getDeltaMovement(), 1)) {
+            return;
+        }
+        // Folia end - region threading - make sure entities do not move into regions they do not own
         this.handleFirstTickBubbleColumn();
         this.applyGravity();
         this.applyInertia();
