We finally found what was - at least partially - causing the problem for you. It seems that you were stuck on a "bad movie" (problems with the movie file itself) - in those cases the system should seamlessly redirect to a good one, but it hiccuped and couldn't move on, so your user, regardless of the device you used, remained stuck on it. This is also why we couldn't repeat it - each user sees movies in random order, and there might only be one or a few bad ones among thousands!
Our developer @ieva patched this for the moment, which is why you (and hopefully others with this issue!) should be able to continue playing.
We are still experiencing other issues, however, all linked to a big update we recently implemented to optimize Stall Catchers... Please see here for more info about it: http://forum.eyesonalz.com/t/please-pardon-our-dust/407/1
Thanks again for your patience!!