Yeah, fairly early on I got a world destroying bug and was horrified. I was able to fix it with some mod updates, and then immediately added Aroma Backup for security of mind. Then when the next corruption occurred, I just rolled back to the most recent update and only lost about ten minutes of work.I know it's a little late for this, but my friend who told me about this pack recommended, very first thing, that I add Aroma Backup. Might be worth adding next time. Maybe your world can be fixed with some creative MCEditing?