Recovering Overworld Map Data

Mm hmm yeah it should. That error is a warning that you now have more tile data than the ROM can re-compress back in it's allocated space, without spilling over and overwriting the data after it which is the minimaps. Editing maps without getting that error is a f**k**g challenge at the least, I get it after editing just one tile on some maps. You're supposed to remove/delete a tile to add one basically, but it doesn't always seem like that - some maps just don't wanna be edited.

This recovery procedure will put your map data back to original, so there shouldn't be that error after doing it.