I had issues casting Skycrash in back to back games. I ended up still winnning the first game, but the bug lost me the second game. This was mostly due to having the same issue casting Clamorous Ironclad.

When I attempted to cast these cards I would enter the screen where I choose between casting them and cycling them. From this screen I could not cast or cycle them. I could change to view battlefield. When I was finally able to click cancle, which did not work initially, the card would disappear from the game. It wasn't in my graveyard or hand, and when I added up all my cards, I only had 39.