I am unable to apply a Fated Matter Fractalizer to this ring, thereby adding a gem socket. Instead I am told “That item cannot be modified”.
I understand sockets can’t be added to just anything, but as far as I can see, it should be possible here, as does not already have one, is a ring and a Shadowlands Season 4 item (currently rank 8/12). When I click on the Fractalizer, the ring stays lit up, as though it were modifiable.
I also just attempted to use the Fated Matter Fractalizer to add a socket to my 12/12 Seal of Darkshire Nobility today and was told that the ring cannot be modified. The ring was Lit up as if it could be.