Ok, this is strange. I have setup a backup server and there do have all (?) movies IMDB ratings?!
I checked all (?) settings and there are both the same. So why acts one server different?!
EDIT: I solved it by doing a “small plex dance”:
- renamed the movie folder to “.Avengers - Infinity War (2018)” (dot in front = invisible folder for Plex)
- … menu > Refresh Metadata = “not available” is displayed
- … menu > delete element (deletes movie from Plex meta database)
- renamed the movie folder to “Avengers - Infinity War (2018)” (dot removed)
- Movies > Refresh all Metadata…
and tadaaa…
Ok, now I know how to solve it for each movie individually. Any idea how to solve this by a bash script?
Conclusion:
This is a bug related to the Plex server only, not regarding the Plex API as I thought before.