yesterday I bought this game and went to play it a while later, but when I played it black dots would pop up all over the screen when I moved and the game would freeze about every 5 seconds. then unfreeze and play for a few seconds. I uninstalled in and refunded, then bought it a again and reinstalled and the same stuff happened. I cannot get a refund and not sure if this is a bug on my part or theirs. I have nvidia shield tablet k1. running Android 6.1. any suggestions are appreciated. thanks