When a classpath folder has subfolders and items ordered after that folder the files will only appear once the subfolder was opened.

To reproduce

1. Goto resources app
2. Open /travel-demo/templates/pages
3. One will see file aboutDemo.yaml and folder areas, see
   
4. Once opening the folder areas, subelements of pages folder will appear, see
   

Related issue

When editing a resource from classpath (and thus storing it in JCR), resources app will display two separate items in the app.
See

This happens because the underlying file from classpath has a different parent directory. With solving above issue, this will also go.