Unable to see post except from Editor

Hope you allow me to post this even though I didn’t do a search first. Honestly, I wouldn’t know how or where to begin.

The blog I’m trying to set up is located here. As you will appreciate, it is a “Twenty Thirteen” child theme. It has three Pages in the horizontal menu and just two widgets in the footer. The blog sits on a “multisites” environment.

When doing editing on a post, the Youtube video that’s supposed to show up is displayed perfectly. However, if I click on the “Blog” menu item, only the post’s meta shows up.

On the other hand, if I attempt to reach the post through the “Categories” widget in the footer, all I get is the same post I can reach through he “Blog” menu item with additional content on top stating “Category Archives: Videos” if I select the “Videos” category or “Category Archives: Children” if I select the “Children” subcategory.

I really have no idea what’s causing this behavior and any guidance will be appreciated. I will gladly produce any additional info requested. Thanks!