After using a module to place the state and then undoing with Control+Z, the following error appeared:
ERROR: modules\actg_visual_script\actg_visual_script.cpp:805 - Condition “!nodes.has(p_id)” is true. Returning: Ref()
So, after placing the module and pressing Ctrl+Z to undo, an error occurred, is that correct?
Since the issue did not occur by simply placing, undoing, and deleting, I suspect it is related to some internal execution action. Would it be possible for you to share the module where the problem occurs?