Tracks without artists caused by "guess feat."

I added the US release which is a copy of the UK release. I used the “guess feat. artists” button and had to create a couple of artists. Nothing unusual there. But two of the tracks on the first disc now do not have artists associated with them. They seem to on the UK track list, but since I did a “copy changes to recordings” they are wonky behind the scenes.

This seems like a doozy of a bug and will cause all kinds of database inconsistencies. What shall we do?

I think this is just a cache issue that should fix itself soon (it’s happened to me a few times). Unless it’s still there in a few days, I wouldn’t worry too much.