I have the same issue. Opened an error ticket 22 hours ago, no reaction yet...
We should find another hobby.
The machine basically doesn't let me play, it wants to beat all opponent itself... just it isn't so good at it. I can turn off the autoplay for the second turn, but a lot of times there is not even a second turn, because the autoplay makes an updated gem in an irrelevant color instead of charging my deck girls' abilities, so the opponent can clear the hole grid and demolish me. This isn't a joy in the tower - but all right, I play it autoplays a few more fights. But in the Colosseum, where the point is building up the bonus and never losing again - well, that sucks.