Hi,
I have a problem with language metadata on some show episodes and movies …
Despite that the language is set in file metadata Plex show the language as Unknown.
As you can see in this screenshot, mediainfo is reporting the language as French :
But in Plex language is shown as Unknown :
I have try to force metadata refresh and delete/re-add item but without any sucess.
Server Version#: 1.25.6.5545
Player Version#:
Have you any suggestion ?
Thanks
Did you set the language tag for the audio stream after you added the file to Plex?
Analyze usually picks those changes up for me (e.g. if I forget to tag a subtitle as forced or got languages mixed up).
I have a theory. Here is a test to confirm it:
get MKVtoolnixGUI
install and open it
Important preparation:
Make sure you are in the Multiplexer module (the default view when you start the app)
In the menu, click on MKVToolnixGUI - Preferences
left side, in the section Multiplexer, click on “Enabling items”
now move the items “Global Tags” and “Tags” from the “Selected” window to the “Available” window
close the Preferences dialog by clicking on OK
drag the affected MKV file into the Input window of the Multiplexer module
Verify the language selection on the audio stream
Click on “Start multiplexing” at the bottom
put the resulting file into your plex library and trigger “Analyze” in Plex.
What happens?
I have the problem on both case, when I edit the value after adding file to Plex and when I edit the value before.
I will try, I keep you updated with this 
Okay, that works
Any way to do it simpler ? Or I have to multiplewing all my bugged files ?
I know of none, I’m afraid. Tell whoever is preparing your files to not embed XML meta tags into your MKV’s. Particularly when they contradict the regular Matroska flags.
[edit] actually, you can try this batch file method for mkvpropedit.
I think removing all parameters except --tags all:"" should be sufficient for your use case (but I might be wrong about that):
Using mkvpropedit with --tags all:"" work perfectly.
Thanks for your help
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