Just from a quick browse, I can see just a huge amount of the same save issue. It seems that the only thing I've seen from Telltale to address this is something along the lines of *shrug* "Just reload over and over and over and maybe it will work." That is not a valid solution to me.
I just bought the game over Xbox Live, and finished Chapter 1. I loved it so far, and I was excited to continue. However, when I chose 'continue' and selected Chapter 2, it would bring me back to the last scene of Chapter 1 every time, no matter how many times I exited to main menu, exited the game, copied the save files, replayed the WHOLE thing, or even tried to just re-finish the last scene.
You accept awards and my money, but you won't fix something as simple as this?? I mean, the whole point of the game is that it changes depending on your choices! Choosing random choices to start each new chapter works...but it doesn't save my choices, so I have no interest in continuing.
In other words, I demand a refund. It seems that there is no way to directly contact Telltale, and I'm sure they will ignore this as well, but it is ridiculous to treat your paying customers this way.