YES i have had the same thing happen to me on this post here
My competitive progress randomly gained extra losses? - Bug Report - Overwatch Forums (blizzard.com)
please this needs to be looked into i got an extra 2 losses for a single game i dont undersatnd why
Blizzard this isnt people forgetting about games they played this isnt people being crazy PLEASE LOOK INTO THIS and fix our ranked cards
I just played a game on my tank and another person in my lobby had the same issue too this isnt uncommon it seems.