Grayed out screen in Champ Select

When I got to champ select, luckily in blind pick, I was unable to pick a champion because my screen was grayed out. Sometimes I can pick a champion but as soon as I want to switch my masteries, same thing happens and I am unable to change them (was forced to go windspeaker on adc graves [still won the game and carried]). You guys need to fix this asap because the bug even works in ranked as I heard from others and having a q wait time for something you did not do is really annoying.

Thanks, back to league now