[edited this report to update with correct info]
My workflow is I click on create post, post the URL of the media, upload a small image of the logo, add the body text with links to the conference information and meda.
The issue is that when I add the image, the URL of the image gets put into the URL field of the create post page.
Previously the URL in the create post page could be directly to the YouTube video. For example https://infosec.pub/post/3334303 worked fine.