Same happened to me, so i will report it here instead of opening a new thread.
Platform, device version and operating system
Screenshot or image
What you were expecting to happen, and what actually happened
I killed the last enemy with Krystenax in a registered PvP-Battle. After that the board looks like you see it at the screenshot, but i wasn´t able to do anything but open the settings and retreat. The battle counts as a loss.
How often does this happen? When did it begin happening?
Like this one never before. All times when the death of all enemys didnt end the battle, i was able to move gems or spell a cast and this end the battle. This happens to me frequently. Cant remember when it did begin.
Steps to make it happen again