Third Client Crash in 2 Days...

So I've just experienced my third crash with the new client in 2 days. I do not know what is causing it but I will play through a majority of a game then my game will go to black screen but keep playing the sound from the last frame. I cant close the game or the client running in the background. Is there anything specific that might be causing this? It is extremely frustrating and is forcing me to only play norms games in fear of me dcing mid ranked game and losing lp.

Update: I have just recieved a low priority que punishment for 5 games due to these crashes... >.> If there is a fix or if this is a known bug someone please help.