[6play] Error 404: no video formats found

[Kugros]

Checklist

• I'm reporting a broken site support
• I've verified that I'm running youtube-dl version 2020.03.01
• 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

[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['https://www.rtlmost.hu/batrak-foldje-p_15803/batrak-foldje-45-resz-c_12591431', '--verbose']
[debug] Encodings: locale cp1250, fs mbcs, out cp852, pref cp1250
[debug] youtube-dl version 2020.03.01
[debug] Python version 3.4.4 (CPython) - Windows-10-10.0.18362
[debug] exe versions: none
[debug] Proxy map: {}
[6play] 12591431: Downloading JSON metadata
[6play] 12591431: Downloading webpage
[6play] 12591431: Downloading m3u8 information
WARNING: Failed to download m3u8 information: HTTP Error 404: Not Found
[6play] 12591431: Downloading MPD manifest
WARNING: Failed to download MPD manifest: HTTP Error 404: Not Found
[6play] 12591431: Downloading m3u8 information
WARNING: Failed to download m3u8 information: HTTP Error 404: Not Found
[6play] 12591431: Downloading MPD manifest
WARNING: Failed to download MPD manifest: HTTP Error 404: Not Found
[6play] 12591431: Downloading m3u8 information
WARNING: Failed to download m3u8 information: HTTP Error 404: Not Found
[6play] 12591431: Downloading MPD manifest
WARNING: Failed to download MPD manifest: HTTP Error 404: Not Found
ERROR: No video formats found; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; type  youtube-dl -U  to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
Traceback (most recent call last):
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpavop71lg\build\youtube_dl\YoutubeDL.py", line 797, in extract_info
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpavop71lg\build\youtube_dl\extractor\common.py", line 530, in extract
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpavop71lg\build\youtube_dl\extractor\sixplay.py", line 113, in _real_extract
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpavop71lg\build\youtube_dl\extractor\common.py", line 1327, in _sort_formats
youtube_dl.utils.ExtractorError: No video formats found; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; type  youtube-dl -U  to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.

Description

Downloading newer videos from rtlmost.hu stopped working this week. Some older links still work. Tested in Sorozatok (series) menu.
Videos that are not marked with a lock icon (paid) are watchable in browser after login (bejelentkezés in top right corner): mosttest@mail.com, pw: Mosttest2020

[a-sync]

Only DRM protected playlists are served for rtlmost from 2020.03.01.