Mac Gameplay

I have a late 2015 MacBook Pro Retina, latest version of Yosemite. Both I and another Mac user found that we had a totally black champion select screen when in the Player vs Ai game. Both of us were given a 4 minute penalty, but we couldn't select a champion, so it wasn't our fault. Please fix the problem, and remove the penalty from my account and bladedanxa as well.

Cheers,

MacShimi