I have had a gamebreaking bug twice now in the commander phantom draft league. One while I was casting Dargo from command zone and Once while an opponent was. The first time it looped for a while and since I was the active player I lost due to inactivity since it was using my time. Fine whatever the table got points and could vote. The second time Just occurred. I had lethal for the table, an opponent portent of betrayaled one of my commanders, swung with it and then tried to sacrifice it to dargo but did not have the mana to finish paying for dargo. This then caused a bug that looped the game for about 15-20 minutes, The game then attempted to restart, we sat in lobby chatting for a few the game crashed again and then we were presented with a proper new game. The active player could not take any actions and we were whittled down again on time. This time once the player lost due to the effect the entire round was ended and it was called a draw where all of us received -1 points and none of us could vote.