I have been trying to 5 star clear the mastery courses and have done so a few times. In the challenges tab however, it consistently has been displaying a number that is one under what I have completed i.e. I have gotten 5 stars on 6 courses so far, but in the challenges tab it says I’ve only done so on five courses. This is preventing me from getting the battlepass xp reward which kinda sucks.
EDIT:
I think I narrowed it down to the soldier 76 mastery courses being bugged, as I have just cleared the agent difficulty with 5 stars, but got no challenge progression for it