Also, one other issue I had. I was playing a game and noticed for some strange reason that the app menu was showing in the top left even though it hadn't (in-game) before. So, I tapped on the settings button there, and it did bring me back to the screen where I could turn the music off or on. I did the back gesture and it brought me back to the game I was already playing, but the five cards from the previous hand were showing, and any new cards showed underneath my name. I took a screenshot as soon as it happened. I quit out of the game and came back and it was fixed, and I tried in the following game to get it to happen again, but couldn't no matter how many times I tried to.
Probably not a major issue with that being the case.