I’m not sure if it’s a bug or not but if you mog your artifact to that of a different spec (eg if I try to use a Silver Hand mog while Ret) then you can’t put an enchant illusion on it, even though it lets you put enchant illusions on the on your spec-appropriate artifact (Ashbringer in this case). Posting here to see if others are having the same issue on their classes/specs.
I am specced fury and I am able to go into two handed swords and apply the ARMS spec artifact weapons for transmog and apply an appearance.
This needs a bump… you still can’t transmog illusions to the silver hand while in ret.
Lame.