diff --git a/test-plugin/src/main/kotlin/space/uranos/testplugin/TestPlugin.kt b/test-plugin/src/main/kotlin/space/uranos/testplugin/TestPlugin.kt
index 6404d9e..74f8339 100644
--- a/test-plugin/src/main/kotlin/space/uranos/testplugin/TestPlugin.kt
+++ b/test-plugin/src/main/kotlin/space/uranos/testplugin/TestPlugin.kt
@@ -107,7 +107,7 @@ class TestPlugin : Plugin("Test", "1.0.0") {
         // Not showing up yet because no metadata is sent
         val entity = Uranos.create<MinecartEntity>()
         entity.position = Position(0.0, 4.0, 0.0)
-        entity.setWorld(world)
+//        entity.setWorld(world)
 
         var x = 0f
         var y = -90f
diff --git a/uranos-server/src/main/kotlin/space/uranos/entity/UranosEntity.kt b/uranos-server/src/main/kotlin/space/uranos/entity/UranosEntity.kt
index 0eb2acd..8b3daf9 100644
--- a/uranos-server/src/main/kotlin/space/uranos/entity/UranosEntity.kt
+++ b/uranos-server/src/main/kotlin/space/uranos/entity/UranosEntity.kt
@@ -65,6 +65,8 @@ sealed class UranosEntity(server: UranosServer) : Entity {
         }
     }
 
+    override fun toString(): String = "Entity($uuid)"
+
     abstract suspend fun tick()
     abstract val chunkKey: Chunk.Key
 
@@ -79,6 +81,12 @@ sealed class UranosEntity(server: UranosServer) : Entity {
         addedViewers.clear()
         removedViewers.clear()
     }
+
+    init {
+        if (server.config.developmentMode) server.scheduler.executeAfter(2) {
+            if (world == null) server.logger.warn("$this was created 2 ticks ago and its world is still null.")
+        }
+    }
 }
 
 sealed class UranosLivingEntity(server: UranosServer) : UranosEntity(server), LivingEntity {