[LVL ED] A working map crashes the editor !

[Mudbill]

Could you attach your log file? Perhaps it mentioned something you missed. Otherwise, yeah use pow2 textures. They work without, but not always the way you want (shifting, glitching etc). Manually editing the .map file with a text editor can be risky, cause it likely references a lot of specific variables, which makes it difficult to do without corrupting the file.