In the last patch, a bug could corrupt your most recent save data when quitting the game from the main menu. This was caused by a change I made to save the game automatically on exit. I've identified the cause and fixed it. If your save data has been affected, please follow the recovery guide linked below to restore it. I'm sorry for the trouble this has caused. One note: if you've completed the recovery but pressing "Continue" in the menu still loads the damaged save, try the "Load Game" button instead — your recovered save file should be there.