meeb
commented
1 month ago yt-dlp (which TubeSync is a wrapper for) can't bypass authwalled media. You can either skip them, or you can pass your cookies into TubeSync which is authenticating yt-dlp with your Google account to allow access to the media (with all of the security and account risks that go along with that):
https://github.com/meeb/tubesync/blob/main/docs/using-cookies.md
Example: https://www.youtube.com/watch?v=nTKU21xwWWM
Output: Media cannot be downloaded because it has no formats which match the source requirements.
How to bypass this type of restriction in tubesync? The video is online and normal, but youtube have this confirmation button before watch on the website, and tubesync cannot bypass it.