Inject Alternative Languages option is not working

Version

1.16.4

Environment

Windows 11 25H2

Steps to reproduce

• Enable Inject Alternative Languages option
• Download the following video in 1080p mp4
• Check if both audio tracks are present in the file

Details

• Expected Behavior: The video is downloaded with both audio tracks, English and Portuguese.
• Actual Behavior: The video is downloaded with a single audio track, Portuguese.

Checklist

• I have looked through existing issues to make sure that this bug has not been reported before
• I have provided a descriptive title for this issue
• I have made sure that this bug is reproducible on the latest version of the package
• I have provided all the information needed to reproduce this bug as efficiently as possible
• I have sponsored this project