Override glitch and leavebuster error.

I got disconnected from league because my computer shut itself down to update. Normally it flashes up a 10 minute warning with the option to postpone, but apparently when you're in a game that is overridden by riot...so I don't see it, can't postpone, then ten minutes later it just shuts down on me to update.

Then when I reconnect to the game 10 minutes later, and we win it, I get cited by leavebuster and am now sitting througha 20 minute penalty. What the hell is this? I reconnected and we won. Why am I getting penalized?