Last modified: 2012-04-16 09:15:45 UTC
When querying a large category on EN, categorymembers is not returning all the pages in the category. A significant number can be missing in some cases. The sort order also changes which pages are displayed. See [[:en:Wikipedia:Bot_owners%27_noticeboard#API_categorymembers_Issue]] for an example.
*** This bug has been marked as a duplicate of bug 27965 ***