Random video I found on youtube that doesn't work in youtube-dl

[NEOAethyr]

youtube-dl --verbose --list-formats "https://youtube.com/watch?v=m9ThyFE0V1Q"[debug] System config: []

[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: [u'--no-call-home', u'--prefer-ffmpeg', u'--verbose', u'--list-formats', u'https://youtube.com/watch?v=m9ThyFE0V1Q']
[debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2020.06.16.1
[debug] Python version 2.7.17rc1 (CPython) - Linux-5.3.13-m2-x86_64-with-Ubuntu-19.10-eoan
[debug] exe versions: ffmpeg 4.1.4, ffprobe 4.1.4
[debug] Proxy map: {}
[youtube] m9ThyFE0V1Q: Downloading webpage
ERROR: m9ThyFE0V1Q: YouTube said: Unable to extract video data

Traceback (most recent call last):
File "/usr/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 797, in extract_info
ie_result = ie.extract(url)
File "/usr/bin/youtube-dl/youtube_dl/extractor/common.py", line 530, in extract
ie_result = self._real_extract(url)
File "/usr/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 1893, in _real_extract
'YouTube said: %s' % unavailable_message, expected=True, video_id=video_id)
ExtractorError: m9ThyFE0V1Q: YouTube said: Unable to extract video data

You can play it back like this though:
https://www.youtube.com/embed/m9ThyFE0V1Q?feature=oembed
However youtube-dl still doesn't hook to it.
It's been a couple years but I'm not seeing the string in the src/json stuff.
And apperrently I can't force youtube to the old ver anymore to debug that.

This example video is an odd one, usually comments get restricted too I think.

[dstftw]

You must authenticate.

[sergeevabc]

I see the same “Unable to extract video data” error message while trying to download the following video on Youtube.
However, it is displayed fine without any additional requests (to authenticate, for example) via Hooktube’s interface.
Why?

[NEOAethyr]

dstftw, Authenticate?
Like my acct, I haven't used this thing in years..?
I put the verbose in there..

I followed the template rules essentially.

If you mean on youtube, I don't have a login, I was banned a year or 2 ago with no warning.
Hence why I'd like to use youtube-dl to pipe to mpv to bypass these things.
I can bypass logging in with the embedded ver.
But youtube-dl still doesn't catch it.

If I need to back these things up for prosperity, and perhaps make a mirror, then wth... :\

[garoto]

If you mean on youtube, I don't have a login, I was banned a year or 2 ago with no warning.

Then you can't download this video, since it's age-restricted,