New Client Crash

It seems the new client is very buggy. When I'm in champ select, it will sometimes randomly crash. Sometimes a message will pop up saying LOL client stopped working (I use Microsoft Windows). However, the client will not actually close, and it will pop back up when I'm out of champ select. It doesn't always close. Sometimes the client interface is still there with nothing showing, but i can still hear the clock sound ticking. Please look into it because i don't like getting long wait timers and i lose lp in ranked.