First of all, I have been troubleshooting this issue myself for the last month with no luck. I have searched Google extensively, read every forum, and spent hours attempting different fixes. Still nothing. Here's what's going on.
I have a series of posts that include a Wistia video as a pop-over SEO embed. As soon as the script is embedded into the post and saved as a draft it appears in the plugin below the post. Moments later it appears in the sitemap. However despite these two indications that the plugin is working, it does not display properly in Google's structured data testing tool or in Google itself.
I have tried this with Vimeo and Youtube embeds as well with the same result. I have gone through every listed troubleshooting step and still end up in the same place. I am trying to have the video schema and Google Authorship work together. The Google Authorship works fine, but the video scheme does not work at all (alone or with the authorship markup).
I greatly appreciate the help as we currently have more than 40 hours of video and it is the primary content on our website.