This seems a problem for a lot of people (me included) not seen any response of fix. Steps stated have not worked (reset cache, repair, reinstall, track / untrack, complete different levels, xp boost, do challenge again etc.) I have tried on 2 different PC's but been like this for 2 weeks. Oddly, the rewards for the later unlocks were given.
"Thank you for sharing your experience.
Yes, unfortunately, this is a very annoying and widespread bug. My issue is specifically with the KTS100 MK8 weapon remaining locked even though the challenge is completed.
I also tried all the general troubleshooting steps you mentioned (repairing, reinstalling, different modes, etc.) without any success.
Hopefully, a Community Manager will intervene on this thread soon and perform a manual unlock for all affected players. Thank you for confirming the issue!"
