Update: Telltale says it's aware that some players are having issues with the fourth episode in its Walking Dead games not recognizing past saves, and it's working on a solution.

Here's the official statement:

Telltale’s support team is aware that a small number of users are affected by this issue, and is working rapidly with those affected to help identify a solution.  If anyone is experiencing any issues, we recommend they reach out to support@telltalegames.com or visit http://www.telltalegames.com/support/ for solutions from our team as they become available.

Original story: Telltale's adaptation of The Walking Dead is one of the more successful examples of incorporating player choice into a game's story. The decisions that players make affect the game in significant ways, often leading to the death of a supporting character. It's understandable then that players who are experiencing save-game issues after downloading episode four are getting particularly upset.

Affected players are posting about their problems on Telltale's official forums. Some players are saying that their progress from episodes 1-3 isn't recognized, and that they get a message saying choices will be randomized when starting episode four. It seems to be an issue across various platforms, though it's clearly not affecting everyone. For those who are having issues, it's obviously a pretty big deal.

We've reached out to Telltale about the problem, and we'll update this story if we hear anything.

Thanks for the tip, Dylan!