Extras in some folders not detected

[Mr_Generic]

Thanks again for the response.
Yes, this is across the board, not just one movie.

Here's an example:  I used the same video clip from my "Alien (1979)" DVD of an introduction by Ridley Scott.  I used the same clip to test the different folders.
Please find the directory structure with filenames below.

The only clips not visible in JellyFin are in the following directories:  clips, other, and trailers.

Hope this helps.  Please let me know if you need further information.
Thanks!
- Bob

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Directory of Alien (1979)

09/29/2017  02:07 PM      949,581,692 Alien (1979) - Director's Cut.mkv
03/12/2024  12:32 AM            8,490 Alien (1979) - Director's Cut.nfo
09/29/2017  02:22 PM      955,954,691 Alien (1979) - Theatrical Release.mkv
03/12/2024  12:28 AM        1,314,438 backdrop.jpg
03/12/2024  12:35 AM    <DIR>          behind the scenes
03/12/2024  12:30 AM    <DIR>          clips
03/12/2024  12:30 AM    <DIR>          deleted scenes
03/12/2024  12:30 AM    <DIR>          extras
03/12/2024  12:31 AM    <DIR>          featurettes
03/12/2024  12:28 AM          177,331 folder.jpg
03/12/2024  12:31 AM    <DIR>          interviews
03/12/2024  12:28 AM            20,757 logo.png
03/12/2024  12:31 AM    <DIR>          other
03/12/2024  12:31 AM    <DIR>          samples
03/12/2024  12:31 AM    <DIR>          scenes
03/12/2024  12:31 AM    <DIR>          shorts
03/12/2024  12:31 AM    <DIR>          trailers
              6 File(s)  1,907,057,399 bytes

behind the scenes
  file:  bts - D01T03 - Ridley Scott Introduction.mp4

clips
  file:  clips - D01T03 - Ridley Scott Introduction.mp4

deleted scenes
  file:  ds - D01T03 - Ridley Scott Introduction.mp4

extras
  file:  extras - D01T03 - Ridley Scott Introduction.mp4

featurettes
  file:  featurettes - D01T03 - Ridley Scott Introduction.mp4

interviews
  file:  interviews - D01T03 - Ridley Scott Introduction.mp4

other
  file:  other - D01T03 - Ridley Scott Introduction.mp4

samples
  file:  samples - D01T03 - Ridley Scott Introduction.mp4

scenes
  file:  scenes - D01T03 - Ridley Scott Introduction.mp4

shorts
  file:  shorts - D01T03 - Ridley Scott Introduction.mp4

trailers
  file:  trailers - D01T03 - Ridley Scott Introduction.mp4