Game stalling/freezing

Game froze 3x, no rope, had to hit “end task” in task manager to get it to resume after I lost a turn and then the game. It seems to be happening when I play Tsunami, or a card that replays that card, but that is the only pattern I see. Not sure if Tsunami on all 3 incidents, but for sure 2 of them. Bizarre. The game stays open and you can move your mouse and look at the cards, but the game gets stuck, and the only way I can get it back to the “live” game is to end task in control panel.