I'm looking into the problem, but I need some more details.
Were you playing an Instant Win game? If so, did the game selection screen never change to the play screen, or did you receive an error message? How long did you wait between selecting a game and exiting out of it?
It was an instant win game. The play screen never appeared, it just showed a blank box. I'd say I waited at least a minute or two before exiting, but there was an obvious problem both times it happened.