Fixed a rare bug where reaching an extremely high score could make your save appear completely reset on the next launch. No progress was actually lost: the game was wrongly refusing to load a perfectly healthy save file. On this version your save loads again automatically, exactly as it was, with everything intact, no steps needed, just update and launch.
Added extra layers of save protection while we were in there: the game will never overwrite a healthy save on your PC with a bad copy from Steam Cloud, and if a save ever fails to load for any reason, the game now automatically restores your newest valid backup instead of starting fresh.