Wrong Video Duration! Broken C-SPAN video on YouTube

[LiquidLightning]

Checklist

• I'm reporting a broken site support
• I've verified that I'm running youtube-dl version 2020.09.20
• I've checked that all provided URLs are alive and playable in a browser
• I've checked that all URLs and arguments with special characters are properly quoted or escaped
• I've searched the bugtracker for similar issues including closed ones

Verbose log

[root@nyc1 ~]# youtube-dl -v https://www.youtube.com/watch?v=wW1lY5jFNcQ
[debug] System config: ['-o', '/videos/%(upload_date)s_%(title)s_%(id)s.%(ext)s']
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['-v', 'https://www.youtube.com/watch?v=wW1lY5jFNcQ']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2020.09.14
[debug] Python version 3.6.8 (CPython) - Linux-4.18.0-193.19.1.el8_2.x86_64-x86_64-with-centos-8.2.2004-Core
[debug] exe versions: ffmpeg 4.2.4, ffprobe 4.2.4
[debug] Proxy map: {}
[youtube] wW1lY5jFNcQ: Downloading webpage
[youtube] wW1lY5jFNcQ: Downloading MPD manifest
WARNING: [youtube] Unknown MIME type application/x-rawcc in DASH manifest
[debug] Default format spec: bestvideo+bestaudio/best
[debug] Invoking downloader on 'https://manifest.googlevideo.com/api/manifest/dash/expire/1601660876/ei/bBN3X5qANIXUgwO_uazYDA/ip/209.95.51.203/id/wW1lY5jFNcQ.1/source/yt_live_broadcast/requiressl/yes/as/fmp4_audio_clear%2Cwebm_audio_clear%2Cwebm2_audio_clear%2Cfmp4_sd_hd_clear%2Cwebm2_sd_hd_clear/force_finished/1/vprv/1/keepalive/yes/fexp/23915654/itag/0/playlist_type/DVR/sparams/expire%2Cei%2Cip%2Cid%2Csource%2Crequiressl%2Cas%2Cforce_finished%2Cvprv%2Citag%2Cplaylist_type/sig/AOq0QJ8wRgIhAI7ZRb3XtkUVweKXahSgvKOj4n39XE5KIOn3rIO6NjZwAiEA2WhI1wpqO5YAlGs6tjQHMG8OFO6MtOisWg3bZkpHO_w%3D'
[dashsegments] Total fragments: 1492
[download] Destination: /videos/20200929_First 2020 Presidential Debate between Donald Trump and Joe Biden_wW1lY5jFNcQ.f137.mp4
[download] 100% of 1.12GiB in 04:29
[debug] Invoking downloader on 'https://manifest.googlevideo.com/api/manifest/dash/expire/1601660876/ei/bBN3X5qANIXUgwO_uazYDA/ip/209.95.51.203/id/wW1lY5jFNcQ.1/source/yt_live_broadcast/requiressl/yes/as/fmp4_audio_clear%2Cwebm_audio_clear%2Cwebm2_audio_clear%2Cfmp4_sd_hd_clear%2Cwebm2_sd_hd_clear/force_finished/1/vprv/1/keepalive/yes/fexp/23915654/itag/0/playlist_type/DVR/sparams/expire%2Cei%2Cip%2Cid%2Csource%2Crequiressl%2Cas%2Cforce_finished%2Cvprv%2Citag%2Cplaylist_type/sig/AOq0QJ8wRgIhAI7ZRb3XtkUVweKXahSgvKOj4n39XE5KIOn3rIO6NjZwAiEA2WhI1wpqO5YAlGs6tjQHMG8OFO6MtOisWg3bZkpHO_w%3D'
[dashsegments] Total fragments: 1492
[download] Destination: /videos/20200929_First 2020 Presidential Debate between Donald Trump and Joe Biden_wW1lY5jFNcQ.f140.m4a
[download] 100% of 115.55MiB in 02:49
[ffmpeg] Merging formats into "/videos/20200929_First 2020 Presidential Debate between Donald Trump and Joe Biden_wW1lY5jFNcQ.mp4"
[debug] ffmpeg command line: ffmpeg -y -loglevel repeat+info -i 'file:/videos/20200929_First 2020 Presidential Debate between Donald Trump and Joe Biden_wW1lY5jFNcQ.f137.mp4' -i 'file:/videos/20200929_First 2020 Presidential Debate between Donald Trump and Joe Biden_wW1lY5jFNcQ.f140.m4a' -c copy -map 0:v:0 -map 1:a:0 'file:/videos/20200929_First 2020 Presidential Debate between Donald Trump and Joe Biden_wW1lY5jFNcQ.temp.mp4'
Deleting original file /videos/20200929_First 2020 Presidential Debate between Donald Trump and Joe Biden_wW1lY5jFNcQ.f137.mp4 (pass -k to keep)
Deleting original file /videos/20200929_First 2020 Presidential Debate between Donald Trump and Joe Biden_wW1lY5jFNcQ.f140.m4a (pass -k to keep)

Description

The resulting video downloaded from here is 1.3 GB but has a wrong duration of 12 seconds and thus does not play back properly in VLC or other media players: https://www.youtube.com/watch?v=wW1lY5jFNcQ

I tried downloading it about 5 times even without potentially problematic configuration file options. The resulting file is broken.

I'm using dnf package manager so I'm not yet at the current version of youtube-dl. Please let me know if you have the same problem with this link.