Thanks- I just tried in troubleshooting mode and I still don’t see a thumbnail. It seems like the plugin isn’t finding the thumbnails in the db? I know they’re there- you can see them all over the site. https://eastbaywalls.com/
I’ll set up an account for you and send that in a couple minutes.
I’m not really sure how the thumbnails are being generated- I have a theme, but I’m also using the single, featured image attached to each post. I’m using the Ocean theme.