I'm still trying to figure out this bug. It's probably the weirdest one this game ever had. Can you please send me the corrupted save file? It has an .aut extension. Thanks 🙂 miki@keeperrl.com
If you email me, I'll send you a link to a previous version, it would be awesome if you could try that and tell me if the same thing is happening. miki@keeperrl.com
Oh, darn, I didn't realize you're playing alpha13, which doesn't produce the stacktraces. Send me an email and I'll give you a steam key so we can see if the bug is still there. miki@keeperrl.com
I understand that it crashes every time you try to save? Can you please post the contents of the file 'stacktrace.out' after the crash if it's not empty?