I've played through Episodes 1 and 2, and have played through about an hour of Episode 3. I do not have episode 4 installed. Today when I went to play it started me back at the beginning of episode 1. It gives me the option to rewind and see stats on episode 1, and I can see stats on episode 2 showing my decisions, but I cannot access any checkpoint I was at previously. When I attempt to play, it starts me back at the beginning of episode 1.
I have attempted to log out, go to the title screen, and log in. The problem persists. I have tried restarting. I have checked the save file - it is 11 mbs (quite a bit of data). Any help would be appreciated.