Support Challenge Not Tracking

For the challenges->assignments->class Support 1 the “Heal Teammates for Health with the Support” (whatever “the support” is, bag I assume?) is not tracking or progressing.  Stuck at 0, restarted game and console now after 1 match stuck at 448.  Restarted both again but still no progress tracking after that.  When I was able to make progress, it only tracked healing from teammates sitting on the bag.  It did not track the teammate health I healed when reviving.