[PeerTube] No audio in videos with separated audio file

[q0ntinuum]

Checklist

• I am able to reproduce the bug with the latest version given here: CLICK THIS LINK.
• I made sure that there are no existing issues - open or closed - which I could contribute my information to.
• I have read the FAQ and my problem isn't listed.
• I have taken the time to fill in all the required details. I understand that the bug report will be dismissed otherwise.
• This issue contains only one bug.
• I have read and understood the contribution guidelines.

Affected version

0.27.2

Steps to reproduce the bug

1. Play a video transcoded with separated audio file

Expected behavior

There should be audio like when watching the video from a web browser

Actual behavior

No audio

Screenshots/Screen recordings

No response

Logs

No response

Affected Android/Custom ROM version

GrapheneOS 2024092900

Affected device model

Pixel 7 Pro

Additional information

The separated audio file option is pretty new since it was released with version 6.3 in mid september.
As it could be hard to find which videos are transcoded with or without the option, here is a video: https://peertube.qontinuum.space/w/hgZBo6dwUD6gaQKjXvCqwW