Fyr'alath/Nasz'uro cannot be upgraded at the upgrade NPC after using Scale

Can you share a link out of the sea of many googled threads that have not advised this?

Thank you.

Seems like it is broken again. upgraded to 519, and now I cannot upgrade again. either upgrade it all at the same time or it will break it.

Same problem.

Hey, so whats the resolution for people who bought the overpriced upgrade during the 2nd bug fix window?

I put in a ticket and Blizzard told me to get bent, so I wouldn’t hold my breath

Just received my Fyr’alath and purchased the scale and used it to get 4/12 Awakened. However, i cant upgrade it. It shows its not eligible to upgrade. I thought there was a hotfix put in place. What gives…