PC Windows 10
Potions freeze the board unpredictably. Happened twice in Bay of Stars Citadel battles.
No idea what caused it, except it happened on opponent’s turn, both times.
Update 8.1 claimed this was fixed. I wouldn’t mind so much, except I have to pay for Citadel tokens in order to beat the Guardian today. (I was going to lose this one, but I was winning the 2nd one.)