Hi slickchris, this seems related. We’re noticing that videos don’t load in the Instagram feed at all. Checked video settings for restrictions on age, country code, public, etc.
I’m also seeing the same issue can be replicated in your demo at https://feedthemsocial.com/instagram-feed-demo/. If you click the Load More button under Instagram grid you’ll see the video two blocks to the right of “Rod Reel Pier” picture is blank.
I’ve updated the plugin and made sure there wasn’t any interference in browser extensions or security plugins like Wordfence, as well.