My ranked is broken. [CLIENT] [CRASH]

I have un-installed and re-installed league because of this problem, So many times I have lost LP because of this problem, I can't climb in ranks because of this problem. My client gets bugsplat after champ select when starting up the actual game (loading screen) all the time. BUT ONLY EVER IN RANKED. I played several games today, and the day before that, and the day before that. All norms or ARAM, then I go to ranked, FIRST GAME IN AGES. FIRST. BUG. SPLAT. It happens so much and it ONLY happens in bugsplat. What is going on Riot? This is my second time posting about this, I expect a response. I've spent over 200 dollars on your game. I think you can spare a little time to fix this.