If you use Gideon’s second ability to exile a creature that is disabled, the game will freeze. You can look at the cards in your hand, the menu, or the ability list, but you can’t make swaps or rearrange the cards in your hand.
I know of two people in addition to myself who have encountered this bug.
I saw that last night when the AI opponent tried to do that. Seems like yet another way to trigger the “doing something to a disabled creature” bug.
I had experienced the same and it cost me the perfect score.
Just had this happen to me, as well. Not surprised to see it already mentioned. Condolences to loss of wins for all of us.