Achter de Schermen Season 3 doesn't play apparently because it needs WideVine now

[trick72]

Describe the bug
As of Season 3 of "Achter de Schermen" these don't start playing. It just goes back to the episode list when trying to play an episode.
In the debug log, I see a line "Error: Decrypt Sample returns failure"

To Reproduce
Steps to reproduce the behavior:

1. Try to open An episode of Achter De Schermen Seizoen 3
2. System tells me it needs "Widevine". It does not need it for previous seasons
3. Installed Widevine and try to play the episode again. It does not start giving the error "Decrypt Sample Returns Failure" in the log

Expected behavior
Program should start.

Screenshots
If applicable, add screenshots to help explain your problem.

Logs
Only Error in log is described above: Error: Decrypt Sample Returns Failure".

System

• Addon version: latest
• Kodi version: latest available (librelec latest nightly build)
• Inputstream adaptive version:
• Operating System (Windows / Mac OS / Android / LibreElec / OSMC / ...): LibreElec
• Special Hardware (RPI / Vero4K+ / ...): Rpi 5

Additional context
Widevine is also used is other plugins like netflix where it works and behaves as expected so it's not a malfunction of the Widevine itself