Champion select crash for only a single person

I was in ranked champ select, when suddenly the timer for picking stopped at 0 seconds. My premates remained in the lobby as my launcher collapsed and i ended up restarting it, with my premates still being in the same lobby but me being at the home screen... So there was a game about to start with 4 people on one team, but the server didn't cancel the matchmaking. That ruined a Promo and my day, pls have a look into this issue, Riot :/