Chuck-ie

@AThousandShips I ran into the same issue that was mentioned here and created a small mrp [godot-mrp.zip](https://github.com/user-attachments/files/17179035/godot-mrp.zip) In my mrp the issue seems to occur if you call set_cell on...

Also, I just figured out a workaround that works in my project and the MRP. If instead of doing: ```gdscript # tile_map_layer.gd notify_runtime_tile_data_update() ``` you do: ```gdscript # tile_map_layer.gd call_deferred("notify_runtime_tile_data_update")...