Thanks, Jason, for pointing out he old thread (which was properly linked to the set).
Apparently, Admin saw that the Gold Tiffany and Silver Matte sets were indeed printing misfires, as Admin removed those sets (only person on the planet with the access to that).
Therefore, the issue is settled. They will not be listed here.
As a side note, if someone has either of them, and wishes to track them, I would recommend adding one to the collection matching the finish of the card (like if the card in hand is the Matte with silver foil, add a base set card) and then in the comments section of the Details, enter the other color foil (in this case "SIlver Foil").
(edited to fix a typo and to clarify the workaround)
-- Dan --
Note: Please see my profile for more info regarding trading (section updated 3/4/2024). I have added a large portion of my inventory to the site, and currently have trading turned on (details are in my profile).