My challenges are not counting... for BR unique stashes?!?

Challenge is not progressing, I got one to count in duos?!? Wondering if I have to be in that mode, which is weird because i got the first 3 in quads... i am so confused, but can't seem to complete this mission.. i am at 8 unique stash visits and 2 kills... but according my challenge tracker i am at 4/5 stashes and 0 kills?!?

So I'm not sure about the kills apart from asking are you using the golden weapon? I was having the same issue with the Unique stashes though, stuck on 4/5 no matter how many times I tried. I went to a unique stash I hadn't attempted to open/counted before and that seemed to count on the challenge, hope this is the case with you but odd the kills aren't counting. Hope this helps.

UPDATE!!! I went into duos and it worked. Done with visiting stashes now. I didn’t know kills have to be with golden gun… so my kills are at 0.., those stats right.. I thought using the weapons in the case inside the stash counted based on wording. That challenge is gonna suck, I never get the bullet arlnodshawrtzagun, I always get the charging whatever shoulder mounted thing that is.