Ranked queue while ingame

So i just played a game and even when i was connected into my game i still had the "Team 3V3 looking for players" window on my screen. I was even able to accept a new game. This soft-locked me in my actual Northgard round, i wasn't able to do anything there.
Only solution was to close the game via task-manager and restart, reconnect to game. Everything worked fine afterwards. Sadly i didn't take a screenshot...