Client Freeze.

Not really sure if client bug or not but I've been having issues where the client freezes up for me. Just the client alone nothing else. The client display will freeze up on whatever screen it was left on. Say for instance it will freeze up the home page of the client and I'll go click to see my summoner profile and I'll hear the sound go through where it goes to the summer profile but it'll actually stay on the home page. Another example would be the fact that I'm in champ select and it will freeze up on champ select screen and when it will be my turn to pick; I'll pick the champ I want but it will never update for me it will still be stuck on the last updated champ select screen. When the client does freeze up I can still click on things and head sounds but it seems the client won't update current things I'm clicking on.