can you send me the map where it happens too ? Because its pretty normal whats in the debug :s No matter what i try i can't seem to reproduce the bug :/ -i create a new map, draw some tiles, import a map, save, close. open the map again, everything still works -i draw some more, save , close. open again, still works. -import another tileset, still works. open the map in ssme, draw in ssme, save in ssme, close - opens it up again in dcme still works. - i deleted settings.dat and retested the things above can't break it. Maybe if i can take a closer look at that map i might be able to find it