After installing the 2.0 you wont see any games that you did order. You only see a small percent that is slowly going up.

After some time games will slowly appear, however even than you can't play them right now. Many games did stay this way even after I did reach 100% of the import.

A normal user would just deinstall it and say that it isn't working. (I see no reason why you shouldn't be able to play the game when it is already there.)

There should be any communication why game a is playable and game b isn't playable. (E.g. "Game preparing, wait some minutes.")