UI glitch with twinspells

When you draw a twinspell over the board but doesn’t play it but move it back to your hand the picture of the second spell shows and stays in your hand.

Hmm, I got the same glitch, but I played my twinspell card.

This happened to my opponent but instead the card is hovering over his minions and it froze the game. His turn has taken 10 minutes so far