Champion Select Bug.

Well, this has happened once or twice during my excursions on league of legends. I'll start looking for a match and begin the waiting process. Every now and then, I like to tweak my masteries page. However, I'll be in the middle and I found a game, okay so I accept the game then go into the champion select. BUT "HEY would you like to save your Masteries?", so i try and click no, yes, anything anything so that I can call my role and get the lane I wanted. But suddenly the client crashes. The ENTIRE client. So rebooting game, and there's leaverbuster waiting for me when i get back.

It's one thing to get leaverbuster because I myself did something wrong, but when It's not on my end I get just a little bit upset. I'd like this shit fixed.