This was happening last Iron Banner as well. Occasionally i will not receive valor points. I'm playing with a full team of 6 and we aren't leaving queues. Everyone else is getting the valor rep for the matches. The first one (this season) happened while i was at 1845 points (3rd win). When we go to the EoM screen, it doesn't show up and then I can check it after and it is the same as before the match. Same thing again 2 games later at 1941 (5th win). It is not counting a Win or a Loss from it either....