Hi! I've noticed that I get a freeze sometimes, when I click a spell and the dice animation starts. The moment the dice animation starts, the freeze happens, at least that's what I noticed. At that point, the only solution I found is to exit the game entirely and open it again.
However, I have also noticed that IF I disable dice animations in settings, the problem seems to be solved.
P.S. Love the game so far, kudos to the devs!