cyberdave03 I had the same issue with YouTube. You were given options as to what to try if you have issues with YT.
Between this post and the other post, you are talking about are options to try. If none work, then contact streamfab feedback via https://streamfab.com/contact.htm.
I kindly asked that no one else post in the old post, but to post YT issues in this post.
Expect the issues to continue as YT is making changes still, and possibly over the next few weeks at least.
Make sure to read THIS and THIS as to yt-dlp and their dealing with the changes. JDownloader2 is also trying different options, but as of now, it does download from YT.
In fact, you can download yt-dlp that needs to be accessed via a Command Prompt As Admin. And yt-dlp, as of now, also works for downloading from YT.
You can always check for the latest version of yt-dlp by typing yt-dlp -U
For Windows, grab the yt-dlp.exe from HERE. Just use (yt-dlp "https://www.youtube.com/watch?v=8d92pFSFnBA").

PLEASE be reminded that this is a MEMBER help MEMBER forum, and little to no staff give support here in the forum.
And if it is staff, they have in their title Staff.
If you have a grievance or are angry, get angry at YT, not the members here.
You can also report your grievances to streamfab via the above contact link.
Thanks for your cooperation, and enjoy what works in streamfab.
Note the number of posts where users are going back to older versions because 6256 is a mess.