Wow! Just Wow! 😮
Discovered this whilst trying to debug why my Youtube frontend no longer works:
$ youtube-dl 'https://www.youtube.com/watch?v=YpiK1FMy2Mg'
[youtube] YpiK1FMy2Mg: Downloading webpage
WARNING: unable to extract uploader id; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see https://yt-dl.org/update on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
ERROR: unable to download video data: HTTP Error 403: Forbidden