Refresh metadata in Music library does nothing

An experiment:

  1. set “Analyze audio tracks for loudness” and “Analyze audio tracks for sonic features” to “As a scheduled task” only
  2. move tracks without an album at least into a folder named after the artist
  3. create a new, additional music library and point it directly to the /A folder. Make sure to enable the “Prefer local meta tags” checkbox before you hit “Create”.

What happens?

P.S. a few music-related fixes will be in PMS v1.25.9, so you might wanna re-evaluate once this version becomes available to you.
Or maybe wait until 1.25.10 which will unlock a completely rewritten music scanner: [Plex Media Server] Forum Preview for Music Metadata