I’m just getting started with Grav, and starting digging into customizing the default theme. I wanted to duplicate, then tweak, the blog template. So, I replicated the blog.html.twig file (and renamed it to articles.html.twig). I made no other code changes to the file. However, when I selected that template for the parent page from the admin panel, the page no longer worked properly. The header showed up, but the items disappeared. What do I need to change in the duplicated file so that it works as expected?
Here is that page on my development site: http://christinar2.sg-host.com/grav/articles