Tried the newest build. Immediately got a deadlock on the first level boss.
Opponent's Exaust: -4/-2 to target minion acticated and the game just halted. I heard some weird buzz sound effect playing in an endless loop in the background.
Another weird thing
Opponent targeted my monsters which were at 0/2 and 1/4 with his spell Firestorm (in grave) that had an effect to deal 6 damage to any targest. In terms of UI, I couldn't see how the damage was split. I chained a +1/+1 spell to save my 1/4 minion but somehow then my opponent's damage spell resolved without effect.