Error alert box for 2-keys encrypted livesim2 content

[tobbee]

Environment

• Link to playable MPD file:
  https://livesim2.dashif.org/livesim2/drm_EZDRM-2-keys-cbcs/testpic_2s/Manifest.mpd
• Dash.js version: Version 5.0 nightly Dec. 13 2024)
• Browser name/version: Chrome 131 (MacOS), Edge (131) (Windows 11)
• OS name/version: MacOS 15 and Windows 11

Steps to reproduce

1. Play the URL

Observed behavior

An error alert box with the message

Error Dash.js; 36
All possible Adaptation Sets have an invalid key status

This does not happen on 4.7.4 or for the corresponding asset with one key:

https://livesim2.dashif.org/livesim2/drm_EZDRM-1-key-cbcs/testpic_2s/Manifest.mpd

Expected behavior

There should be no error alert box