Platform, device version and operating system:
Screenshot or image:
Here’s a video.
What you were expecting to happen, and what actually happened:
I was doing GW and suddenly my board and spells froze. I thought the whole game had froze, but the animations still played and I could click around on menus. I could not move gems or cast spells.
How often does this happen? When did it begin happening?
Just happened this once.
Steps to make it happen again
Absolutely no idea what caused it.
EDIT: After quitting the battle, several gems exploded before the battle officially ended.