Created pages not displaying in Top Navigation component

The Top Navigation component should display the contents of the menu defined in the Navigation settings. However, I've created several pages (and folders) in my Publishing site which are not appearing in the Top Navigation. The Top Navigation component is empty, providing the ability to add links.

Here are my Navigation settings:

I have one site collection with a top-level site; no sub-sites. I expected that when I created pages or folders in the page library that they would appear and display.

What am I missing? (And will the folders display in the navigation?)

SharePoint 2013 on-premise