[YouTube] Channel playlist link in UU format doesn't download any videos

[SlipperySlimes]

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Checklist

• I'm reporting that yt-dlp is broken on a supported site
• I've verified that I'm running yt-dlp version 2023.06.22 (update instructions) or later (specify commit)
• I've checked that all provided URLs are playable in a browser with the same IP and same login details
• I've checked that all URLs and arguments with special characters are properly quoted or escaped
• I've searched known issues and the bugtracker for similar issues including closed ones. DO NOT post duplicates
• I've read the guidelines for opening an issue
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Region

United States

Provide a description that is worded well enough to be understood

For many months, I have been downloading entire YouTube channels using the playlist link, such as this.

However, now it works on some channels but doesn't on others. When it doesn't work, it displays a new layout on the webpage and all I see in the output is "Downloading 0 items out of X" and it doesn't download anything. Instead of being the typical list of uploaded videos, this new webpage is a grid of rectangles that look like Shorts. For example, passing this link doesn't work for me. It says "Downloading 0 items out of 18057".

I guess this is some sort of new A/B testing. Some channels work and then stop working later in the day, and for others it's the other way around.

Provide verbose output that clearly demonstrates the problem

• Run your yt-dlp command with -vU flag added (yt-dlp -vU <your command line>)
• If using API, add 'verbose': True to YoutubeDL params instead
• Copy the WHOLE output (starting with [debug] Command-line config) and insert it below

Complete Verbose Output

[debug] Command-line config: ['-vU', '--ignore-config', 'https://www.youtube.com/playlist?list=UUxqPAgubo4coVn9Lx1FuKcg']
[debug] Encodings: locale cp1252, fs utf-8, pref cp1252, out utf-8, error utf-8, screen utf-8
[debug] yt-dlp version stable@2023.06.22 [812cdfa06] (pip)
[debug] Python 3.10.11 (CPython AMD64 64bit) - Windows-10-10.0.19045-SP0 (OpenSSL 1.1.1t  7 Feb 2023)
[debug] exe versions: ffmpeg 5.1.2-essentials_build-www.gyan.dev (setts), ffprobe 5.1.2-essentials_build-www.gyan.dev, phantomjs 2.1.1
[debug] Optional libraries: Cryptodome-3.17, brotli-1.0.9, certifi-2022.12.07, mutagen-1.46.0, sqlite3-2.6.0, websockets-11.0.1
[debug] Proxy map: {}
[debug] Loaded 1851 extractors
[debug] Fetching release info: https://api.github.com/repos/yt-dlp/yt-dlp/releases/latest
Available version: stable@2023.06.22, Current version: stable@2023.06.22
yt-dlp is up to date (stable@2023.06.22)
[youtube:tab] Extracting URL: https://www.youtube.com/playlist?list=UUxqPAgubo4coVn9Lx1FuKcg
[youtube:tab] UUxqPAgubo4coVn9Lx1FuKcg: Downloading webpage
[youtube:tab] UUxqPAgubo4coVn9Lx1FuKcg: Redownloading playlist API JSON with unavailable videos
[download] Downloading playlist: Uploads from Bangy Shorts
[youtube:tab] Playlist Uploads from Bangy Shorts: Downloading 0 items of 18057
[download] Finished downloading playlist: Uploads from Bangy Shorts

[coletdjnz]

For https://www.youtube.com/playlist?list=UUxqPAgubo4coVn9Lx1FuKcg it seems like YouTube is only giving 1 page worth of shorts. So fixing support for this view on our side will only yield 100 videos 😕

I suggest you pass the channel url (https://www.youtube.com/channel/UCxqPAgubo4coVn9Lx1FuKcg) if you need more since that will get you all the channels uploads too.