Platform, device version and operating system:
Screenshot or image:
What you were expecting to happen, and what actually happened:
tried to cast alchemist, gem started shaking when i clicked on one trying to convert and swipe caused it to match a gem, then the whole battle froze.
How often does this happen? When did it begin happening?
One off, casted alchemist more than 100,000 times before without fail. (not even exagerrating)
Steps to make it happen again
No idea, don’t think I pressed anything special beyond a normal cast.