I’m helping someone on another forum who’s having trouble getting Picard to tag performers. He confirmed that he has “use track relationships” and “write tags to files” turned on. He showed me a screenshot (http://i.imgur.com/0p8GR1J.png), and I confirmed that the release he’s using has performers to import (it’s this one: https://musicbrainz.org/release/8d8c1d3e-231b-3d48-bdf1-a3abb9290963). Still nothing.
Is there anything else we’re not thinking of?
Edit: actually, it seems to be this album specifically that’s the problem.