Fixed PickupItem scenes to spawn their item child scenes.

objects/pickup_item.gd

@@ -11,12 +11,12 @@ var editor_child_scene:Node3D = null
 		if value != item:
 			item = value
 
-			if not Engine.is_editor_hint():
-				return
-			
 			if editor_child_scene != null:
 				editor_child_scene.queue_free()
 
+			if not Engine.is_editor_hint():
+				return
+
 			editor_child_scene = item.scene.instantiate()
 			add_child(editor_child_scene)
 			editor_child_scene.owner = self