I was well ahead in the game. Attack phase began, I clicked on my Wooly Loxodon to attack, followed by my Sagu Pummeler. Game was behaving slowly, I had to click "Attack" a few times before it responded. My creatures tapped and appeared to be attacking, but my timer "rope" started ticking down. I was unable to take any actions. My opponent sent a message "your go", I was able to send messages as well, but unable to take any game action. I ended up resetting the client, but by the time I got back to the game I was just in time to watch it give me a loss. Extremely frustrating.