[CLIENT] Black screen after accepting game (Mac)

I've encountered this bug several times where after repeated pops of the queue (very frequent, close together pops -- like 3+ within 5 seconds) the game loads into champion select but all I get is a black screen. I can hear all the sounds of champion select, but cannot see or interact with anything. The minimize, question mark, tools, and exit icons are also still visible in the upper right hand corner.

PLEASE fix this, the new client has been absolute nightmare since the second it was released. I have a picture if needed but it isn't very informative since it's just a black screen.