Mac Client Freezing In Draft Pick

This has happened twice to me on separate days during ranked draft pick. The Mac client will go to draft, and it will freeze during bans. You can still type into the chat box and I am able to see my teammates chat back to me saying "my client is frozen". Then an "unkown error has occured" message pops up and it kicks me out for failing to select a champion and I lose lp and get a dodge timer... It's quite annoying.