My static pages have stopped displaying, and instead show "Sorry, no posts matched your criteria."
Initially (based on searching here) I thought this might be an .htaccess problem, but that seems to be fine. My post permalinks work OK and I get this error whether I'm accessing the page by permalink or by its id number.
One of my pages was working fine while two were broken; however, when I updated the working page, it dissapeared too! The content still exists in the admin panel; it's just not displaying in my blog.