Lost all of my save data, and the game crashes a lot

I was playing through the game and trying my best to get every collectable, and do side missions, but the game would crash often, which was annoying, but I didn’t mind because it has all the DLC and it only takes a second to restart the game after its frequent crashes. However the game crashed again recently, and upon restarting it, all of my save data was lost. I’m seeing this issue with other people that have the game on the Apple Store and I really wish that it will be fixed after all this time.

Oranos27 about Batman: Arkham City GOTY