There are a number of problems with Welsh Wikisource (https://cy.wikisource.org/) which may or may not be interrelated.
- There are two namespaces called "Tudalen" (= "Page" namespace at en-wikisource). Namespace 104 has all the pages in it; namespace 250 is empty.
- Likewise, there are two namespaces called "Indecs" (= "Index" namespace at en-wikisource). Namespace 106 has all the pages (there are only 2) in it; namespace 252 is empty.
- Pages in the Tudalen namespace cannot be edited; the error message "You cannot edit this revision because its content model is wikitext, which differs from the current content model of the page proofread-page." appears.
- Pages in the Indecs namespace do not have a table showing the pages associated with the index. Contrast https://en.wikisource.org/wiki/Index:A_Welsh_Grammar,_Historical_and_Comparative, which includes a table of the pages in the book, with https://cy.wikisource.org/wiki/Indecs:Y_bibl_cyssegr-lan.djvu, which does not include such a table (although it did 5 years ago).
- In the main namespace, the "<pages/>" function no longer works; it generates an error message "Gwall: ni chafwyd hyd i'r mynegai" ["Error: the index was not found"], for example at https://cy.wikisource.org/wiki/Beibl_(1588)/Genesis. This also worked correctly several years ago.