All of Unfinity (Acorn)'s legendary cards are missing from Gatherer

[scarletcs]

All Acorn-stamped legendary creatures from Unfinity are missing from Gatherer. They do not appear in search results, and attempting to visit their multiverse ID redirects you to the home page. That's these creatures: https://scryfall.com/search?q=set%3Aunf+type%3Alegendary+is%3Amultiverse+stamp%3Aacorn&unique=prints&as=grid&order=name

This issue was first noticed on December 19, 2022, and still persists today. We initially raised it in #140, which observed that all legendary creatures were missing, which has since been fixed exclusively for the eternal-legal legendary cards but not the acorn cards.

Scryfall has evidence these creatures were once listed: all of the creatures in the above search have an associated multiverse ID we once retrieved from Gatherer. Additionally, #135 has screenshots and links to the Gatherer pages for for Vorthos, Steward of Myth which are now unavailable and instead redirect to the homepage: Vorthos and Vorthos (Showcase).

Searching for these cards in Gatherer returns zero results. For example:

• Searching for devil nevil returns zero results (Devil K. Nevil)
• Searching for vorthos returns zero results.
• Searching for legendary cards in Unfinity (Acorn) produces zero results.
• Searching for legendary cards in Unfinity returns only 13 legendary cards, which is the set of eternal legal legendary cards and not any of the acorn legends.