To Recreate: -add some News Items or HTML customizations on addtional-contents.pl -set the expiration dates to some date in the past -that news item is filtered out and librarians have no way of editing it I can also recreate this on 21.05 when the page is still named 'koha-news.pl'
Bug 27766 - "Hide expired news items by default" - made this the default, but checking the "Show expired" checkbox in the sidebar should display them.
Ah! Thanks Owen