This has been an ongoing problem for me for at least 2 years. I have finally decided to try and find a solution. Haha. During the game my app "stops working". Sometimes I get a pop-up to tell me it has stopped. Usually it just freezes. I think I'm waiting for someone to bid when in fact it is my turn to play but I can't click on the screen. Estimated frequency: 1:120 minutes of play. Currently I use Android 7.1.2 on a Pixel XL. I had the same problem on my Samsung Galaxy note 3.