Hello all,
I too have a collection of songs that Plex Scanner refused to cooperate with. Almost every ‘unreleased single’ I had in an album called ‘singles’ would lose every song title when I refreshed the library or updated metadata.
I found a solution which works for me and might for you (assuming your tracks are tagged appropriately).
Go to edit your music library (for me Music (triple dots) > Manage Library > Edit)
Now click the ‘Advanced’ tab.
Ensure the first checkbox option is selected: “Prefer local metadata”
Now scroll to the bottom.
Under the ‘Scanner’ dropdown select ‘Plex Music Scanner’
now, under the ‘Agent’ dropdown select ‘Last.fm’
click ‘Save Changes’
Now if a change hasn’t happened automatically, refresh the metadata for your library and scan all files again.
For me it corrected everything. I could now tell that the tags I had input on the files themselves were being read. No more empty filenames, and no more problems for me.
I was even able to change the scanner and agent back to plex music (and scan library and refresh metadata) with no problems. I’m not sure what bug caused this to happen in the first place, but switching to the Last.fm to reset the database seemed to work for me.
Disclaimers:
I verified every track had tags in the ID3v2.3 (ID3v1 ID3v2.3) format
This didn’t fix everything. Some titles (markedly fewer than before) still had issues.
Some titles I had manually changed and locked earlier remained locked with no title. So I had to go through and unlock all of them for the Last.fm to update them.
Its been inconsistent. When I first switched to Last.fm EVERYTHING was perfect. Now its more like ‘most things’. I still can’t seem to find the pattern of exactly what seems to be causing issues for Plex with unreleased under the radar songs.