Batman telltale - need help

My first time with a disc based telltale game. I downloaded ep 1 when it was free. I bought the disc and I think installed the game and the season pas. (When I click manage game it shows both game and season pass are installed. ) But when I go to play ep 2, it prompts me to purchase it.

Any help?

You have to download each episode from within the game - not via Manage Game. 

Or is that what you are doing?

For King's Quest, I ended up with two icons. One for the free download of the first episode and one for the disc version of the complete collection. Separate trophy lists too. Different company and different system, but may be a similar issue.