Local artwork for music

Hello,
Most of the times my albums get the correct picture art, not sure if scrapped or if it uses the local .jpg (often cover.jpg or folder.jpg).
But when I use a compilation album with various artists it does not scape the cover art.

I don’t use embedded artwork since I prefer to link to one folder file in musicbee. Anything I can do to link to that .jpg in plex?

For this to work, ‘Local Media Assets’ must be checked under
Settings - Server - Agents - Albums - last.fm
and
Settings - Server - Agents - Albums - Plex Premium

If the Artist poster and wallpaper are needed, the same must be done under
Settings - Server - Agents - Artists - last.fm
and
Settings - Server - Agents - Artists - Plex Premium