Music Video identified only partially

[brothom 197]

I've been trying to get Music Videos going but I'm running into an issue with (at least imvdb) where identification is successful, but most data is missing.

My file "Caravan Palace - Moonshine.mp4" with artist "Caravan Palace" and title "Moonshine" is correctly identified as imvdb id 103953927269 (https://imvdb.com/video/caravan-palace/suzy).

A lot of fields however are still empty, like artist, are empty which makes the "Artist" tab on the Music Video library kind of redundant.

Is there a reason why fields like artist aren't added/updated after identification / refreshing metadata?