Album artwork impacted by .AppleDouble sub folders on NAS

[audiobeer]

Thank You Tim!

I have my library connected on USB disk.
For instance this has no thumbnail:

Code:

/Media/TOSHIBA/Music/Wardruna/Runaljod - Gap Var Ginnunga

'01 - Ár Var Alda.flac'                                  
'02 - Hagal.flac'              
'03 - Bjarkan.flac'            
'04 - Løyndomsriss.flac'
'05 - Heimta Thurs.flac'
'06 - Thurs.flac'       
'07 - Jara.flac'        
'08 - Laukr.flac'
'09 - Kauna.flac'                
'10 - Algir - Stien Klarnar.flac'
'11 - Algir - Tognatale.flac'   
'12 - Dagr.flac'
cover.jpg        
extra
folder.jpg
Thumbs.db

/Media/TOSHIBA/Music/Wardruna/Runaljod - Gap Var Ginnunga/extra
'Runaljod - Gap Var Ginnunga.cue'
'Runaljod - Gap Var Ginnunga.log'

Thank you