In node 3.3 I had the game freeze 5 times in a row. Every time it freezes when a servo token is destroyed. I believe it happens when you are in the middle of a cascade and the logic is trying to determine what to do with the matched gems while the servo token is destroyed. Below is some screen shots of the battle log and the game.
Also I believe a landfall might be involved. Maybe it is stuck looping through a match 4 or 5 gem logic.
