Is this a bug? Games from different ranked teams being combined on your profile during placements

So I'm a member of more than one ranked team (One is new, the other I've had for multiple seasons). I played one game with the new team and lost (profile shows "Placements - 0 wins, 1 loss). Then I play 3 games with my other team (one of which doesn't get recorded, but I already complained about that elsewhere), and won 1 and lost 1. Now profile shows "Placements- 1 win, 2 losses", even though I only have one loss with either team.

Is this a bug? You have to play 5 games with any given team to get placed right? Since the MMR is for the team, not for you personally. Shouldn't it not combine records from 2 different teams during placements?