This phenomenon is bizarre.  If you look directly at the attachment you will know what I am talking about. I used the latest nightly build `MP4Box - GPAC version 2.3-DEV-rev31-g9971fb125-master` , and this is the footage I used for testing.
[minisample.zip](https://github.com/gpac/gpac/files/10442010/minisample.zip)

And this is information output through the MediaInfo tool.
[minisample_MediaInfo.zip](https://github.com/gpac/gpac/files/10442045/minisample_MediaInfo.zip)

As you can see, the bitrate descriptions for video and audio seem to be interchanged. And the Dolby Vision metadata is also gone.
When remuxing mkv to mp4, the Dolby Vision metadata is stripped and the video and audio metadata are mixed together.
This is a GitHub Issue
repo:gpac
owner:gpac
Title : When remuxing mkv to mp4, the Dolby Vision metadata is stripped and the video and audio metadata are mixed together.
Issue date:

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This phenomenon is bizarre.  If you look directly at the attachment you will know what I am talking about. I used the latest nightly build `MP4Box - GPAC version 2.3-DEV-rev31-g9971fb125-master` , and this is the footage I used for testing.
[minisample.zip](https://github.com/gpac/gpac/files/10442010/minisample.zip)

And this is information output through the MediaInfo tool.
[minisample_MediaInfo.zip](https://github.com/gpac/gpac/files/10442045/minisample_MediaInfo.zip)

As you can see, the bitrate descriptions for video and audio seem to be interchanged. And the Dolby Vision metadata is also gone.
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