Match queue uncompleted, get waiting time "for leaving"

recently I get sometimes the issue, that my queue breaks up. I hear the sound of a found Match and the 1-Minute-timer starts, than my screen jumps back in the matchmaking queue as someone left the match before. But after a second the allert “leaving queue” appears and i get a timeout of 5 or 10 mins, even I never left the previous match. This happened with 1v1 as well as teamgames (all ranked game-queues).

I do understand that sometimes it might is technical or because somebody else left, but why do I get the timeout? its really annoying