Movies not showing up in library

[TheDreadPirate]

it looks like you tried to add a subfolder of an existing library entry

you added public/audio then tried to add a subfolder of it as another library, you need to remove the initial one and put each in their own subfolder; if thats the case

That hadn't occurred to me.  Because Movies is already in Audiobooks because you included the parent folder, you can't then add a subfolder of an existing library to another library.