I've played this game nearly daily for half an year now, still missing three unlocks from cursed run and only now I've come across a game crashing bug:
My leader has a Timestone equipped, which gives Cantrip for the two on the right side. Stun and the boost hammers. When the die lands with the hammer side up, with the cantrip, it crashes instantly. I guess the game doesn't know what to boost as it is the first turn and no dice have been chosen.