I downloaded MLLE to flip some tiles verticaly in my level, but when i clicked 'Save and run', something went wrong. Now I can't even open the file.
The only thing I did is change the tileset.

I can't open the level in any way, and that level is the contest entry. I need to finish it. How do I fix this?

never mind. Luckily I found a copy in the cache folder (why the hell did I even put it in there?). A not so small part of the level is missing, but it's still good news. I remember how it all looked like. Close this topic unless y'all wanna talk about damaged .j2l files.

Originally Posted by Jelly Jam

unless y'all wanna talk about damaged .j2l files.

I recently made a fork of MLLE specifically to fix damaged .j2l files (among other issues). MLLE was using an incorrect character encoding for the saved .j2l, so when a help string contained '§', it would corrupt the level. If you're having the same issue, this version of MLLE will automatically fix your corrupted level. If you don't want to overwrite your MLLE settings, you only need to copy MLLE.exe and MLLE.pdb from the zip file.