Hi !
As you can see :
But on one of my library it seems to work well (edit : it was*)… I checked the settings, but I did not managed to fix it yet.
Server Version#: Version 4.47.3 (linux debian x64 amd)
Filerights to srt file perhaps?
plex user must be able to see it
I checked. There is all the perms (777 files and directory).
Then do a plex dance, and after that, upload logs in a zip
Which metadata agent is used in his library?
Inspect the content of the guid property from the movie’s Plex XML info to find out.
It depends on the libraries.
Series 4K = guid=“com.plexapp.agents.themoviedb://62560/4/1?lang=fr”
Movies (a brief history of time) guid=“plex://movie/5d7768295af944001f1f7476”
Animes = guid=“local://78500”
No support can be given for Absolute Series Scanner and Hama.
You will have to ask their respective authors.
I can only advise you to activate the line ‘Local Media Assets’ in all places under
Settings - Server - Agents
Refresh Metadata of “A Brief History of Time”.
Already did : refresh metadata, analyze and scan the library
Do subtitle and video file share a common folder? (or is the subtitle in a subfolder named subtitles?)
Do you have a subfolder for this particular movie? (recommended!)
Copy the file name from the video file and paste it into the subtitle file name. Use the language code fre instead of fr.
Yes, if we take A brief history of time as example :
path/A Brief History of Time (1991)/A.Brief.History.Of.Time.1991.BLURAY.1080p.X265.HEVC.VOST.DTS-HD.MA.5.1-JACKT.mkv
path/A Brief History of Time (1991)/A.Brief.History.Of.Time.1991.BLURAY.1080p.X265.HEVC.VOST.DTS-HD.MA.5.1-JACKT.fr.srt
I changed the agent of the Series 4K library
and renamed the subtitle to : A.Brief.History.Of.Time.1991.BLURAY.1080p.X265.HEVC.VOST.DTS-HD.MA.5.1-JACKT.fre.srt
Still not working 
This cannot work. It is a movie, not a series.
I’m sorry for being imprecise, A brief History of Time is in the Movies (Films) library listed above with Plex Movie as scanner and Agent.
I changed the scanner in my Series 4K library to check with other subtitles.
That doesn’t have an impact on any of the already existing series in this library.
You’ll need to perform “Fix Match” with “Search Options” to change the agent of an existing series.
Or perform the Plex Dance with it.
It seems to have solved the problem for this library, thanks ! I’ll look into it.
But the problem is not solved for other libraries, at least, it’s not working on A brief history of time.
Is your media storage perhaps using ACL’s?
I am no Linux expert, but when activated, these ACLs come on top or effectively replace the traditional Linux file access mask (e.g. ‘777’).
Which means the subtitle files still could have different access permissions to them than the video files.
My storage is a Google Drive mounted with Rclone. I gave all the perms to directory and files on the mounting command.
All my media are on this drive, since it’s working now, I don’t see how this could be a permissions problem.
Also when I replace or delete a media, it’s not “updated” on Plex (the media is still there but considered as “Unavailable”), how could I change/fix that ?
Edit : emptying the trash did nothing
Any idea guys ? 
Already asked for a zip of logs, right after a Plex Dance
