Hi,
I've experienced this bug about twice now when queuing up in duos with a friend. We'll queue up and the game starts with only one other person on the opposing team on the loading screen. The opposing team's teammate ends up on our team instead and it becomes a 3 vs. 1, with three health bars on our side.
Initially a harmless bug on my side and one I'm happy to ignore but after winning the game I'll experience a loss in my ranking despite winning the game. The first time around I lost a good amount, however the second time I experienced this bug and won the game I went all the way from BFF (Purple) to Gold 3. Strangely enough, my teammate doesn't experience any ranking loss and it only happens to me.
Not sure if there is a log of the games and the points gained/loss, but this happened today at 3/21. Would be great if I could get my ranking back, however happy to climb again as I have nothing better to do with my life except play a game that lets me live my furry dreams, against those also living their furry dreams.