Plex refusing to transcode any video with TrueHD audio

I’ve noticed lately that a number of my videos will not play at all if the video requires transcoding. Direct play works fine. The issue seems to be with any file with a TrueHD track. It simply will not play if transcoding is required. If I select a non-TrueHD track, it will transcode and play properly. I’m using PMS 1.9.2.4285 via the Plex docker on my Unraid NAS. Log attached. Would appreciate the help!

I will need your full logs but I suspect your codecs need updating due to corruption / failed download.

Using the command line, go to the Codecs directory, cd into the most recent directory there (if multiple), get a directory listing ls -la.
You’ll probably find one which is quite a bit shorter (or zero ) length than the others. Delete it. PMS will re-download

@ChuckPA said:
I will need your full logs but I suspect your codecs need updating due to corruption / failed download.

Using the command line, go to the Codecs directory, cd into the most recent directory there (if multiple), get a directory listing ls -la.
You’ll probably find one which is quite a bit shorter (or zero ) length than the others. Delete it. PMS will re-download

What are the logs you need? Looking at the file sizes of each codec, none of them really stand out.

If your system is otherwise completely quiet,

  1. Turn on Verbose logging (settings - Server - General)
  2. Start playback of one file
  3. Let it fail playback
  4. As soon as it fails: Settings - Server - Help - Download Logs
  5. Disable Verbose Logging
  6. Attach the ZIP file here with your next post

Actually, I went ahead and nuked the entire codec directory. Files seemed to playing fine now! Thanks you for the help!