Played 5 hours 28 minutes File Corrupted upon save n quit

[rockdasymphony]

Was playing for a couple hours when I decided it was time to quit for a while, I did alt tab a few times before I quit playing. When I decided to quit, I pressed escape, chose "Save and Quit" and then I chose "Quit" in the main menu. Just tried to load up my game and now the file won't load saying, "Cannot load, save corrupted". I did nothing to the files, I hadn't messed anything in any files or folders. I guess it's juts a bug that can happen... unless the client updated and i didnt get any notification of it.