Is the category empty? That is, does it contain no documents?
If categories do not contain any documents, they are hidden from users in the navigation structure until they contain documents. Once a document is published, the category and its documents will become visible. Note that this does not mean you cannot publish documents in the category you cannot see, as the category will appear in the publishing dialog.
Note: The above does not apply to users who, through their profile settings, have overriding access in the document module.
Last updated: 2 May, 2024