Bug with champ-select

There is a bug with champ-select that if you pick a champ and press "lock in" it won't lock in. Just lost 3lp for that. And some times it won't even pick a champ. I didn't record this, but the same thing happend to a streamer. I wrote in the riot support service, they said some garbage about I can help others by telling the shit, but what about I lost lp, lost promos?? "00:50" when it happend in the video.