What up with This Black Screen

Heres how this goes:

Log in--> Start a game(happens in all game formats)-->match found--> Enter lobby with a black chapm select.

I can still look at my friends list and notifications, and chat with people outside of the lobby cause i cant see the lobby. not only that, but it doesnt allow me to click on anything in lobby. This has happend to me multiple times. and the only way for me to fix this is to either Re-install League or wait for next weeks update. this has happened to people i know from different parts of the world. I use Curse, just in case there may be a connection.