Playback Error occurs when trying to play video after editing its file name

The Plex Dance should clean things up.
You should also try changing the folder name for the movie.

As a test, try this…

  1. Make a temporary, working folder that is not scanned by Plex. (ex: /volume2/Videos/working).

  2. Move the Fast and Furious 7 file to that folder.

  3. Perform steps 2, 3, and 4 of the Plex Dance. You must do this at the server level, not the library level. See the screenshot on the Plex Dance page.

Edit: The movie should no longer appear in the HD-Movies library.

  1. Still in the working folder, place the movie in a new folder and rename like this: /Furious 7 (2015)/Furious 7 (2015) [1080p BRRip x264 DTS].mkv

  2. Move the Furious 7 folder with the movie to the HD-Movies folder:
    /volume2/Videos/HD-Movies/Furious 7 (2015)/Furious 7 (2015) [1080p BRRip x264 DTS].mkv

  3. Re-scan the library.

Plex should correctly recognize the movie, add it to the library, download cover art, etc.