bug champion selection with legacy client

i just had a bug with made me leave champion select so i wanted to report it. I was waiting my turn to pick but the enemy team didn't seem to pick a champion so i was asking me why i wasn't going back to queue because timer was ended. After something like 20 seconds i seen my scree freezing and then saying that both enemy summoners had pick and that i had 30 seconds left. i was deciding wich champ to play when queue canceled and brought me back to game launching screen (without being in queue). It seems like my game maybe froze or got a small dc but i wanted to report it so other player know that they must pick quickly if it happens to them.