AMC Network - unexpired auth token

[dare2]

Checklist

• I'm reporting a broken site support issue
• I've verified that I'm running youtube-dl version 2020.12.26
• 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 bug reports including closed ones
• I've read bugs section in FAQ

Verbose log

[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['--verbose', '--hls-prefer-native', '--ap-mso', 'DTV', '--ap-username', 'PRIVATE', '--ap-password', 'PRIVATE', '-f', 'best[height=720]', 'https://www.amc.com/movies/a-christmas-story-2--51734']
[debug] Encodings: locale cp1252, fs mbcs, out cp437, pref cp1252
[debug] youtube-dl version 2020.12.26
[debug] Python version 3.4.4 (CPython) - Windows-10-10.0.17763
[debug] exe versions: ffmpeg N-81707-g11777eb, ffprobe N-81707-g11777eb, rtmpdump 2.4
[debug] Proxy map: {}
[AMCNetworks] movies/a-christmas-story-2--51734: Downloading JSON metadata
[AMCNetworks] movies/a-christmas-story-2--51734: Downloading JSON metadata
[AMCNetworks] CHjeDRMl9JWV: Downloading SMIL data
ERROR: This content requires a valid, unexpired auth token.
Traceback (most recent call last):
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpfx0ls98k\build\youtube_dl\YoutubeDL.py", line 803, in wrapper
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpfx0ls98k\build\youtube_dl\YoutubeDL.py", line 824, in __extract_info
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpfx0ls98k\build\youtube_dl\extractor\common.py", line 532, in extract
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpfx0ls98k\build\youtube_dl\extractor\amcnetworks.py", line 90, in _real_extract
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpfx0ls98k\build\youtube_dl\extractor\theplatform.py", line 52, in _extract_theplatform_smil
youtube_dl.utils.ExtractorError: This content requires a valid, unexpired auth token.

Description

Not sure if a bug or I'm dong something wrong. It's been a while since I've tried to download content from AMC Network. I can play the video in my browser after entering the same MSO credentials.

https://www.amc.com/movies/a-christmas-story-2--51734

ERROR: This content requires a valid, unexpired auth token.