Client Bugs - Champ Select

I am having random bugs in the client lately. The most recent was when I was in champ select for Ascension. The ban phase was complete and changed to champ select. My client went almost completely blank. After a few seconds, I was kicked out of the lobby. A message appeared saying that I exited during champ select. Either it kicked me out, or another player exited and caused the weird bug. Things like this have been happening for a little while now.