Current questions and answers regarding the map editor.

Regarding the editor. What errors does it display? Perhaps these errors indicate that the map is unplayable? Or maybe they indicate conflicts between objects? Please describe the problem in more detail.

It's definitely not unplayability; I checked that. It could be a conflict between objects.
Here's what happened: when drawing the map, a couple of saves were normal, and the map loaded normally. Somewhere around the 3rd save, something went wrong, and it started weighing 22 bytes and wouldn't open...