Update MKV Headers without Prompting Library Tasks

Plex Media Server
1

I’ve been revising / correcting MKV headers with MKVToolNix, which helpfully updates the tags without requiring any remuxing.

The issue that I am running into is that once I have updated the headers, Plex initiates all library tasks (generating markers, thumbnails, etc.) as if the file were recently added.

Is there a way to avoid this reprocessing of video files whose only modification is an updated header?

Server Version#: 1.43.3.10896
Player Version#: 1.115.0.426-4e960a1d
<If providing server logs please do NOT turn on verbose logging, only debug logging should be enabled>

2

I’m guessing Plex is seeing the .mkv file with a newer modified date than it had previously and as such assumes it’s a new file.

There are tools you can use to modify those dates (like “touch”) so you could at least try and see if that’s the actual issue.

3

Editing the headers directly will only save you the effort of remuxing.
The affected file will still be treated as “modified”.