5 minute game Lockout because of champion select bug

Was editing masteries and then the game dodged. The queue immediately popped and I instinctively hit accept. Then when I got to champion select I was met with a completely uninteractable client. This persisted when I took too long and was kicked. I had to crtl-alt-delete and end the task.

This is the first time it actually broke my client, but editing masteries does often induce a lot of lag and is overall a giant pain in the ass; especially when I only have two mastery pages and have to edit them EVERY SINGLE GAME.

Please work on this, or just give us more pages for free. I can't buy pages, because I'd much rather buy champions.