I am about 3/4 of the way through Episode 4 and the game refuses to let me load an up to date save game. The only save it allows me to load takes me to the final segment of Chapter 3 and if I try to start Episode 4, it tells me it will randmise my choices. I got to the point in Episode 4 where you have gone through and emerged from the sewer, a significant chunk of the Episode lost!
I have done this twice now and when I go back to the game, it forgets I have played any of Episode 4 at all, ditching me back in Episode 3.
I have a save game file that was made at about 9pm in my Finder, but in-game my newest save is clocked at around 8pm.
After making backups, I deleted the saves in the game menu and tried to restore them through Finder, copying the prof file from the game Directory and now I have no save at all to load and am about to give up on the game.
I'm playing on a Macbook Air.