What: The https://phabricator.wikimedia.org/project/view/4913/ workboard should be a Phabricator project rather than a subproject within the Platform Team Workboards.
Topic on Project:Support desk
Try posting at Talk:Phabricator/Help to ensure Phab admins see it or just file a task in the Phabricator project (as I believe this needs database fiddling)
Thank you, @Majavah.