Addition to the above: I looked up template tags in the Codex, hoping there might be a solution in editing the theme files, and found that the wp_list_cats tag that the theme I’m using uses can have values set for showing empty categories and showing children (subcats).
So I set hide_empty to 0, and children to 1… But it still says “No Categories”. The full argument list I now have in the template is:
wp_list_cats(0, 'All', 'name', 'asc', '', 1, 0, 1, 0, 1, 1, 0,'','','',0)
which *should* make it show empty categories and include all subcategories, but no luck. Anyone have any idea what I might be doing wrong?
The site is https://www.arts.yorku.ca/soci/barent/ if that helps.
I think for now I’m just going to have to get rid of the master category and put the categories back the way they were, but if a solution ever turns up I would love to be able to have a link to a master Announcements page.