Hey man thanks for the bug report. I will check it out as soon as I can. I want to do some thorough testing to make sure there aren't more problems like that as well as some kind of series of videos to talk people through how to use it!
[Edit] - I uploaded a new version a few days ago which is updating obj_map_editor with the newer changes (which were causing this bug and some others)
Viewing post in Isometric Tactics Battle system for GameMaker Studio 2 comments
Hi, I'm trying to follow the tutorials and as it would happen I am getting the same (or at least a similar) error after trying to set up the cursor for the room editor. I'm not sure if you're still active on here but any bit of help would be greatly appreciated!
Variable <unknown_object>.drawsprite(100014, -2147483648) not set before reading it.
at gml_Object_obj_editor_Draw_0 (line 22) - drawsprite(spr_cursor, 0, draw_x, draw_y);