New mp3 rip not seen other than in folder view

[Budgie]

I have just ripped, tagged (ID3v2.4) and saved on NAS a new CD. I have ripped to mp3 and added album art as this was not on musicbrainz. The genre is Folk and all the tags are as they should be in EasyTAG and Puddletag.
Using BubbleDS Next as control point, what is strange is that the album is not visible when searching Genre>Folk>Artist but if I just search Artist the album is there OK and it is also there in folder view.
What am I doing wrong?
Budgie