I just had this issue, since the update that brought in the 22 second reset or however long it was. It didn't kick in. It was still sitting there without buttons after several minutes. Ally code is 496-841-539. Name is DarthHorcrux. I was on a Hoth LS TB, on wave 6. Characters were Commander Luke, original Lando, Stormtrooper Han, original Leia, and R2. The wave loaded up, the enemy did some initial attacks, and I had no options to attack. It was also set on auto play at 4x speed. The device is a Samsung Galaxy Tab A SM-T350, running Android 7.1.1. I didn't get a screenshot.