BUG: Random Champion Option Breaks Lobbies

Spam click the random icon. Even with leaving yourself plenty of time afterwards to pick the client will negate your champ choice, pick a random champ, and lock you out of choosing summoners/masteries/runes Message: "There was an error choosing your champ."

The error message continues on into post game lobby where you will be locked out of distributing Honors/Reports/Chat. The only solution is to exit client.