Images not feeding to Networked Blogs

My blog feeds to my Facebook page. However, images don’t feed with it (there used to be a thumbnail of one of the images on my post). Now it’s just my ‘generic’ blog header. I’ve done everything (I think) that Networked Blogs said to do, but they say to be sure to check “import full post and images.” There’s a checkbox for full post, but nothing for images. They’re of no help, and said I should ask over here.

Any settings I need to be aware of? I’m using the following feed, which works fine except for the images:
https://terryodell.com/terrysplace/?feed=rss2