ERROR: Unable to download JSON metadata: HTTP Error 404

[johancop]

D:\!APPS\TVDownloader>youtube-dl.exe "https://www.vrt.be/vrtnu/a-z/kamp-waes/1/kamp-waes-s1a5/" --verbose
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['https://www.vrt.be/vrtnu/a-z/kamp-waes/1/kamp-waes-s1a5/', '--verbose']
[debug] Encodings: locale cp1252, fs mbcs, out cp437, pref cp1252
[debug] youtube-dl version 2020.01.01
[debug] Python version 3.4.4 (CPython) - Windows-10-10.0.18362
[debug] exe versions: ffmpeg 3.4, ffprobe 3.4
[debug] Proxy map: {}
[VrtNU] kamp-waes-s1a5: Downloading webpage
[VrtNU] kamp-waes-s1a5: Downloading JSON metadata
[Canvas] pbs-pub-0763b56c-64fb-4d38-b95b-af60bf433c71$vid-ad36a73c-4735-4f1f-b2c0-a38e6e6aa7e1: Downloading JSON metadata
ERROR: Unable to download JSON metadata: HTTP Error 404: Not Found (caused by HTTPError()); 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.
File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpj4acy7ln\build\youtube_dl\extractor\common.py", line 627, in _request_webpage
File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpj4acy7ln\build\youtube_dl\YoutubeDL.py", line 2237, in urlopen
File "C:\Python\Python34\lib\urllib\request.py", line 470, in open
File "C:\Python\Python34\lib\urllib\request.py", line 580, in http_response
File "C:\Python\Python34\lib\urllib\request.py", line 508, in error
File "C:\Python\Python34\lib\urllib\request.py", line 442, in _call_chain
File "C:\Python\Python34\lib\urllib\request.py", line 588, in http_error_default``

Tried to download this several times since days, other episodes can be downloaded.
Below some webpage stuff to compare episode 4 with 5, but don't see any issues.

kampwaes.txt

[Sven-C]

Of which issue is this a duplicate?