This has been happening to me for 2 months now following update 1.12 where every time I log into Ac valhalla it says an error is preventing my game from being saved please restart to be able to save again. But when restarting and pressing continue the problem still persists, I have over 330 hours of playtime on my save and now displays as corrupted and I cannot play the game anymore. Honestly this is a serious game breaking issue and has completely ruined my experience with this game.