Just finished a standard game as warrior where I played Deepminer Brann and triggered his effect. I then played Dream Planner Zephrys that I put in my deck, and his battlecry triggered only once before breaking the game. I picked one of the 3 options, it correctly gave me 2 cards, then the game stuttered and I was no longer able to interact with anything. The game never disconnected me, it just held me in a state of limbo until I eventually lost.