Just played a game yesterday which I handily won. It is reporting it as lost. I only played one game that day, and I am positive beyond a shadow of a doubt that I won it. Was a 2 on 2 on the brothers map. My team mate died 11 times and I killed 15 or so enemy, took all awards except cit upgrades, and won through war points.
The pantheon is reporting it as a loss however, and I did stay till the end of the game. I believe (though am not nearly as positive) that this has happened before.