PDF, After Edit to Blog Post, is Not Appearing

Hello,

When I initially create a blog post, the PDF document and the View Fullscreen link appear in the blog post. I’m using Advanced Custom Fields to create the posting form. Everything looks good in the user’s view of the post.

But, when I edit the post, whether I modify the content or not, and save the post, the PDF document no longer appears in the post, just the View Fullscreen link. The View Fullscreen link works. But I also want the PDF document to remain in the post. It’s like it has forgotten the embed.

I can send images if you like. The link I provided above is the blog post with the PDF document missing.

The page I need help with: [log in to see the link]