I would think the art work would have to go in the pictures folder to the player not into the music folder.
I have a Grundig PMP and i know if by mistake a piece of artwork gets into the music file it skips it .
Surface Pro (2017) vs Surface Pro 4
20 groundbreaking 3D animation techniques
How to mine Bitcoin on Mac
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.