Movie trailers missing

https://support.plex.tv/hc/en-us/articles/202934883-Cinema-Trailers-Extras

Edit your library, go to the ‘Advanced’ tab and verify that ‘Enable Cinema Trailers’ is checked

  1. Have you refreshed your movie library after you activated your Plex Pass?

  2. The trailer feature needs the ‘Plex Movie’ agent.
    If you used The Moviedatabase agent to ‘match’ your movies you need to do this:
    Settings - Server - Agents - Movies - TheMoviedatabase
    verify a checkmark is placed on the line ‘Plex Movie’
    Afterwards, refresh your movie library

  3. If you used 3rd party metadata agents, like the .nfo importer or the one from MediaMaster, you’re out of luck.