So I lost my save for this yesterday on PS4. I was on Chapter 10 and had some random game crash (was the third time it happened. Generally, I'd just start the game back up again, no biggie). When I fired the game back up, I got a message saying the save file had been corrupted with no option but to delete the entire save file.
Instinctively, I thought...fuck that sucks, but I should be able to recover it from my PS+ cloud backup for saved games, might lose a tiny bit of progress. I check out my notifications and apparently no save data was ever uploaded. Seven messages of "Upload Failed". No other game on PS4 seems to have this problem. Seriously disheartening. I was thoroughly enjoying the game, but not enough that I'd want to start over again at this point.
Seems quite a few are complaining about this this happening to them randomly. Ubi needs to fix their shit.