Noticed this last night. Did a scan of the bug reporting and didn’t see it. Relics that require MIs to craft seem to not recognize when you have the MI in your character’s inventory.
Did you by any chance transfer it from Item Assistant? That is an issue that has been reported (including by me) in the IA thread.
I did. I tried doing things like dropping it on the ground, picking it up, putting it back in the stash, putting it back in inventory. But if this is an IA-interface issue, that’s good to know.