The one album cover is in almost all my interpret covers and ~25% of album covers. There are other pictures in the metadata, but I won’t go manually through my whole library to fix this.
The database seems fine (no errors checked with sqlite) and I switched multiple times the setting Album Art between ‘use local Files only’ and ‘Plex Music only’ and ‘both’.
The metadata was refreshed numerous times.
I have no clue how to solve this and also didn’t find a similar issue online.
If you have 1), enable the display of “hidden” files AND those marked as “system”. Now look at the folder contents of the music library root folder and the artist folders which are affected. There should be no graphics files whatsoever in there. (Unless you have put in an artist picture consciously.)
Graphics files should (usually) only appear in the album level folders.
When trying to untangle things like this, it is very important to be aware of the status of “prefer local meta tags” (in the properties of the music library, on the Advanced tab).
After correcting the issue above, you’ll want to perform the Plex Dance “light” (“light”=omit step 4) with the affected artists/albums.
Start slowly and only add a few albums/artists at once and investigate if something comes out unexpected.
To speed up the process when dealing with a large number of items, you may want to disable the analysis features for music in plex (or at least defer them to be performed only during the nightly server maintenance period). https://support.plex.tv/articles/200289526-library/ (“Loudness”+“Sonic Features”)
Thanks @OttoKerner, you go me to the right direction.
The album cover, which was all over the place was situated in the root folders. I deleted them and run now a metadata refresh on all artists (manual selected>metadata refresh).
