iTunes not using Music sub folder
I am using iTunes 12.3 with the "keep music folder organized" option checked. My iTunes media folder is on a network-attached disk.
As of today, when importing new music, iTunes is placing the artist folders inside iTunes Media, while previously they were all put under iTunes Media/Music.
The "Advanced" tab under preferences shows that iTunes knows where my media folder is (/Volumes/NAS/iTunes Media/) as it should do. Any ideas why this might be happening or how to resolve?
I have tried asking iTunes to consolidate those files, but it doesn't move anything: iTunes seems to be very happy with its choice of location.
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For complete clarity: I have some albums by Andy Stott. When I imported them, they went into
/Volumes/NAS/iTunes Media/Music/Andy Stott/(album title)/...
When I added a new album today, it went into a new folder one level higher:
/Volumes/NAS/iTunes Media/Andy Stott/(album title)/...
Any ideas much appreciated!