This only happens on my iPad. Ever since the last update, I’ll be playing along fine, then I’ll make a move and this screen will pop up on top of the game. The game is still active under this blank screen, but because I can’t see the game board, I can’t continue to play. There is no way to close this pop up screen. Only if I go I to the settings, and press the option to reset/quit out of the current game. Then the whole board will reset and I have to start the level all over again. Please fix this bug.