Mini Shudderblock + Dr. Stitchenstew bug

I was playing a game as a warlock, i played Arch-Villain Rafaam and i have got Shudderblock and Dr. Stitchenstew in hand. I played the mini Shudderblock and Dr. Stitchenstew and the first battlecry triggered, so i picked the 3 cards i wanted Dr. Stitchenstew to summon and then the game froze. I had to concede to put an end to it.