First of all I have additional artist columns displayed set up as
Artist 1 Value $meta(artist,0)
Artist 2 Value $meta(artist,1)
Artist 3 Value $meta(artist,2)
Artist 4 Value $meta(artist,3)
So I can see multiple artist as seperate columns.
If I click direclty into Artist 1 column to do an edit and press return, the artist 2 entry is deleted.
This didnt use to happen.