Bug: Can't download playlist containing audio-only media

[james-pre]

Reproduction steps

1. Add audio-only media items to a playlist
   • Songs are my use case, and a good demo. example
2. Either get YT to serve UMP or force UMP from settings
3. Enable the different configurations (below)
4. Try to download the playlist
5. Observe the failures

Actual result

• "Use Secondary UMP"=true, "Native UMP Player"=true: Downloads fail with the message "Missing information to complete download". On retry, a different error is shown.
• Secondary=false, Native=true: Another error
• Secondary=false, Native=false: Downloads just show a black thumbnail and don't appear to start

Expected result

These settings should either work and support downloads, or show the user an error message.

Grayjay Version

391

What plugins are you seeing the problem on?

YouTube

Plugin Version

356

Which android version are you using?

Android 17

Which device are you using?

Google Pixel 10

Which operating system are you using?

GrapheneOS

When do you experience the issue?

• While logged in
• While logged out
• N/A

Are you using a VPN?

No

References

No response

Relevant log output

[samir-nmx]

I have the same issue, my workaround is to disable "Use Combined UMP" when I want to download Audio only. This works, but seems to cause regular videos to fail, so I have to turn it back on afterwards for normal viewing.

@Zvonimir-FUTO would it be possible to somehow have the downloader automatically switch to separate streams when trying to download audio only?

[james-pre]

Yeah I didn't include it in the initial report but Secondary=true, Native=false seems to work.

[Zvonimir-FUTO]

@samir-nmx Instead of working a workaround we are just gonna work on a proper fix :)

[samir-nmx]

Yeah I didn't include it in the initial report but Secondary=true, Native=false seems to work.

Interesting, for me it just throws the "Missing information..." error. The setting for Secondary doesn't seem to matter, I still have to set Combined=false for audio downloads to work and then Combined=true for video playback to work.

[samir-nmx]

@samir-nmx Instead of working a workaround we are just gonna work on a proper fix :)

Isn't every fix for the YT plugin just a workaround to access a hostile platform? :)