Camp Select Bug

I que'd up for a game of ranked and after clicking accept I was brought to a black screen with a message of "retrieving game data" and loading bar. My duo partner said to wait it out so I did and ended up trying to restart my client with the previous window still open. All was fine with 15 seconds left during my pick, thinking i was going to be logged in on time to select a champion. But I was greeted with a leave during my silver 1 promos and a 30 minute wait as well as a mark on my leave buster. All in all this really sucks and would be really nice if i could get some help on this.