I think they did it because of the launch of Watch Dogs. Ubisoft disabled AC4 cloud saves and never enabled it again. *Also, enabling the MSAA antialiasing options or anything for soft shadows causes the game to freeze and Radeon Software tries to send in a crash report, in the opening cutscene, though it must be a GPU driver issue rather than the game itself I reckon. You can do a few things to launch AC4 properly: If you are getting an error that Uplay has stopped working, you should try re-installing Uplay manually. Activating the Uplay cloud saves isnt a task you can do from your end. It's clearly a launcher issue, can you please look into this? It's frustrating enough having to type the password every single time. Reinstalling Ubi Connect, signing off and log in again, checking Remember this machine in login screen, nothing. This has been posted in the forums before, none of the 'solutions' work. Back then, it never asked for the password everytime I booted the game happens even when I press PLAY from Ubisoft Connect, and not Steam. It's the Digital Deluxe edition, bought on Steam several years ago. Since it's Ubisoft Connect now and not Uplay, it always asks me « Please re-enter your Ubisoft account password to play this game». I recently downloaded Black Flag to give it another go.

Ac4 uplay