During double XP weekend on Saturday the 14th of December and Sunday the 15th of December I had a few SWAT match XP rewards lost after the match was over. I’m not entirely sure what caused it but probably 3-4 matches over the course of the weekend I didn’t receive any experience. If I remember correctly a friend of mine online also had the same issue though I haven’t heard anything from anyone else on the subject. And before anyone says maybe I just skipped over it by pushing A I always look over the match experience while it looks for players for the next match and my experience progress bar didn’t move. 
Thank you for any information or assistance you can provide.