Video as featured image not being recognized in feed

Hey there,

We’re using video posts types in our theme and thus use a YouTube video via an <iframe> as the featured image in place of an actual featured image when the post type is video.

The plugin is able to capture an featured image just fine when the post is a normal type; however, it is not capturing the featured video when the post type is video. Facebook’s review team caught this and is asking us to fix before being approved to published.

Steps taken to try and fix:

1. Wrap <figure> around <iframe>
2. Add custom transform rule via the plugin settings: https://gist.github.com/jacobarriola/076803c0c99db1d41b81216c0fc0e87c

Article markup (via debug meta box in the edit screen): https://gist.github.com/jacobarriola/69f7e5f9461e2d0f5cf2e04f41d00442

Actual article: https://freebeacon.com/politics/cuomo-american-people-find-clintons-answers-war-terror-unsatisfying/

Thanks so much for the help and the plugin!

https://www.ads-software.com/plugins/fb-instant-articles/