Yasuo Bug [CRASH]

I have a bug that is making Yasuo unplayable for me. When picking him, the champions never load into the rift and I cannot close the League client with any method other than a hard PC restart. This has resulted in me coming to lane atleast 5mins late and just losing the game. I even got leaver buster for it the first time since I had to windows update on restart.... Now that I realize it is Yasuo that is causing this problem I won't play him until its addressed. Anyone else having an issue with this champ? I would really like to play this champ again... rito pls!