You have inserted YouTube links in your FS Pro 2020 document. When you publish your document and want to play your inserted YouTube video you are unable to play the video because:
Your video gives an error
You can only see a link.
Make sure that you insert a youtube link that contains "www.youtube.com" like this example: https://www.youtube.com/watch?v=Yn4duTSEVqE
If you insert a YouTube video that does not contain "www.youtube.com", your video will not be published successfully. For example: https://youtu.be/TLmGk7Sr82U
If your video is not playing, even if the link is correct, make sure that the video is not private.