I said that Streamfab downloads it. I had the subtitles muxed into the file. But when I want to select the subtitles in VLC Player or Jellyfin, I can’t tell them apart. It just says Track ½/3 etc.
In MKVToolnix, the name for the track is also empty. I have to assign the name manually for each file and each track.
And normally, the MediaInfo tool should show Dolby Vision and HDR for the HDR track (in case of fallback). But I don’t have that. Only Dolby Vision.
This applies to every video. But as an example of both problems, I’ll just mention Superman in 4K and MKV (not MP4). In Germany.