Here you go, a little video showing the discovery of the USB disk contents. As you can see, only one album is displayed (ok), whose artist is the same artist as the first track (Nat King Cole).Yet the browse hierarchy appears to be fine. Could you browse the Ultra with BubbleUPnP/mconnect to confirm?
This issue also occurred with tracks in APE format. The format has nothing to do with this issue.5.2.703434 mentions changes related to the APE format. It might be worth converting Absolute Unforgettable to APE to see what happens!
I would appreciate it if you could help me with this problem by telling WiiM Support all the details you have found out, so that they will have less difficulties in solving it.
Thanks a lot for your efforts.