Audiobook custom artwork not persisting when new scan initiated.

[martyc1981]

I have this really annoying problem. I have custom artwork for all my audio book authors (150+). It's basically a picture of them and their names in the artwork. But, whenever I rescan the directory, it changes back to the artwork that Jellyfin deems appropriate. Which looks awful. The file structure I use is below:

Audio Books (!)
        ¦--------------> Thriller (!)
               ¦------------------> Robert Ludlum (!)
                          ¦-----------------> The Bourne Supremacy
                                     ¦--------------------> Chapter 1.mp3
                                     ¦--------------------> Chapter 2.mp3
        
        ¦--------------> Science Fiction (!)
               ¦------------------> Phillip K Dick (!)
                          ¦------------------> Do Androids Dream Of Electric Sheep?
                                     ¦--------------------> Chapter 1.mp3
                                     ¦--------------------> Chapter 2.mp3
        
        ¦--------------> Fantasy (!)
               ¦------------------> J. R. R Tolkien (!)
                          ¦------------------> The Lord Of The Rings
                                     ¦--------------------> Chapter 1.mp3
                                     ¦--------------------> Chapter 2.mp3


I don't mind the actual book art on the individual books. But the authors and the genre need to stay as my custom artwork. But whenever I scan the directory it changes everything back. Then I literally have to spend half an hour changing all the artwork to the custom artwork again. Is this a bug or am I doing something wrong? When I use custom artwork in any other directory, it persists.