Unable to change artwork….Solved (for me)

Added some tracks to some playlists in iTunes in Windows 10, but however much I searched for a solution I was unable to either delete artwork or add new. For these tracks.

Tried right clicking on the affected track(s) and adding via Song info but nothing changed.

When I looked at “Details” I saw that in Artist, Album & Artist album, they were blank, whereas in those tracks where I could delete and change artwork these sections each contained the same information,

So I copy and pasted the artist’s name into all three previously blank sections, clicked okay and bingo, now for the artwork I couldn’t change, I was now able to do so.

This new artwork quickly appeared in Apple Music on my devices.