This affects only files in mp4/m4v file containers.
Edit your library(s)
go to the Advanced tab
disable the checkbox “Prefer local metatags”
If you are still using the old agents:
There is no need to completely disable local assets, as this will also disable external subtitles and sidecar posters.
Go to Settings - Server - Agents - Shows - TheTVDB
In there, grab the line ‘Local Media Assets’ with your mouse and drag it downwards, so it ends up being at the bottom of the stack of active agents.
Repeat the same under
Settings - Server - Agents - Shows - TheMoviedatabase
as well as under Movies
Or fix the embedded ‘Title’ tag in your files, so it contains sensible data.
You can use software like mp3tag for mass-edits.
Afterwards, perform the Plex Dance with mismatched episodes
or perform Refresh Metadata on shows which contain mis-titled episodes.
