Melco playlist problems

[Uktrumpetman]

First post - hi everyone, yes I play trumpet in big bands!

Went to add some new tracks to my playlists to find that the tracks stored on my Melco have no artwork and will not play. Tracks from Qobuz present no problems and play ok.
If I re find my CD track and add it back to the playlist all is good. PITA though and defeats the whole idea of a playlist.
Only thing I can possibly put it down to is Melco software update and /or Minimserver update

FYI. I'm running app controller in hybrid mode
Mostly use Kazoo
Can use Lumin, Melco HD, problem is the same in them too.
Machine is EX series

Question - what is what is happening, why, anyone got a fix?

I can switch to twonky and start from scratch, which seems the best idea atm


I don't see any option but to put back all the tracks stored on the Melco in the playlists manually, better things to do I think!!!!
All advice appreciated, but not a large hammer yet!!!