Same issue . Reached out to report it. Answers were so unsatisfactory. They just told me they know about it and come here to chat with others. No solution no ETA.

Same issue for me with the FIN main set. 100% completion, but the achievement won't unlock.

My name is Lynn Reed from North Carolina, and I lost $603,000 worth of Bitcoin in a targeted SIM swap scam. Within minutes, my Bitcoin vanished from my Coinbase wallet, leaving me completely devastated and confused. I had no idea how something like this could happen so quickly or what I could do to recover from it. I immediately reported the incident to the proper authorities and explored all legal channels, but nothing could have prepared me for the reality of such a loss. Weeks went by with no progress, and I began to lose hope. Eventually, I got in touch with Morphohack Cyber Service, a reputable company specializing in crypto and digital asset recovery. Their team of blockchain investigators and digital forensic experts stepped in and worked tirelessly to trace and recover my stolen Bitcoin.
Thanks to their expertise, professionalism, and discretion, my assets were successfully recovered. I’m incredibly grateful for Morphohack’s help during one of the most difficult times in my life. I highly recommend their services to anyone facing a similar situation, they are experienced, efficient, and trustworthy. E-mail contact: MORPHOHACK@CYBERSERVICES. COM.....

Also having this issue. Completed the Duskmourn set and it didn’t unlock.

Same here. Completed Tarkir -and- Alchemy: Tarkir thinking it might have to be a Standard/Alchemy thing. Still not unlocked.

Same here - completed Tarkir four of and it is not logging - I think craterhoof is the problem.

I just finished same thing but it doesn't work too.