This just happened to me too. The issue wasn't during save though. I was in the middle of multiplayer when I lost connection to Autolog and then the game tried to reload into single player and got stuck on the load screen. I waited about 5 minutes and after this power cycled the console. It loaded and I have all my unlocked Mods but I started completely over on single player and had to replay the intro. No idea what could have caused it but it is weird. I'm not too upset (the game is easily worth another play through) but it's going to be a bit annoying if it happens again. I'm more interested in recovering my info than I am in finding a patch to stop this happening again. Any way to recover a lost save? Also this is the Playstation 3 version of the game.