In my game against rustAlot (as warbaker), if I knock out his sniper (currently ubered by his medic) using my witch, and then tap my witch, the game crashes. This is true even if I have no actions left at the time. Resetting my phone doesn't make the problem go away. Tapping other units does not cause the crash.
Given that exploding his Sniper is my best possible play, I'm in a bit of a pickle!