As others have noted, there is a bug with the current patch being rolled back, but it's more than that. Every time I close Ubisoft Connect, it either rolls back the current patch or reapplies the new patch. (So currently, don't close Ubisoft Connect if you have the current patch installed.) The first time the patch rolled back then was reapplied, I noticed that every achievement except from High Life had been unlocked, even though I haven't played since Season 2.