What you were expecting to happen, and what actually happened?
I used “Dervish” with my Dust Devil and once the characters had moved to their new location (The top troop moved to the bottom slot.) the game froze. This has happened more than once.
The characters move, but the Turn Indicator remains above my troops and the opponent does not get their turn. None of the Gems are clickable either, there is nothing that can be done except for clicking the settings button in the top right.
It did not happen at first, only once I had gotten my Dust Devil to Level 10. I’m also not 100% sure, but I believe there are always less than 4 Enemy Troops when this happends.
(A separate issue I have had with Dust Devil is that sometimes the Enemy Troops don’t disappear after they’ve been defeated. This also happens when using Dervish.)