I’m suffering the same issue as the following thread:
The issue started occuring a little over a week ago. However, I was unable to find a solution for the double-pathing.
Attempting to manually remove and re-insert files would be a chore as a very large number of files were added recently and the double-pathing seems to occur randomly in manually-imported files, but occurs every time Sonarr adds a new episode from current seasons.
If you told Sonarr to trigger a library update in Plex, disable the automatic and the periodic library update in Plex.
Otherwise it can happen that 2 update threads are running in parallel, which then results in these doublettes.
From what you’ve told me, I checked and plex library updates were both active on Sonarr and Plex media server in auto mode.
I’m going to try disabling the library update from Sonarr first and see if that helps. However, is there no way to fix the double-streamed files without removing them from their folders and re-adding them?