That is false. Any such error would have been fixed. It IS something you did. And I myself have played the game for over 1000 hours. Not one corruption, so that whole quitting while it's autosaving thing is incorrect.Has anyone even read my post?
I've NEVER Alt + F4 or shut down my computer before saving and exiting. And I still got it twice.
Saying it's OP's vault is incorrect. like this happens even if you save the game properly.
EDIT: I do believe I read something somewhere that said it happens if you leave the game while it's autosaving. Your best bet might be turning off autosave.