So i just levelled my pw from level 40 to level 46, got a something went wrong message in the training screen. Pressed the retry button, got the message again and again. After a while i rebooted the game, and my pw is level 40 again and my crystals to level her up were gone.
That’s not nice 
Are there more people who had the same problem occuring?
seems likely they could be rolling back the patch