I also have a problem with full album tracks. Lookup recognize all important information but choose one explicit song with explicit length (eg 3:01). The original and correct value (eg 51:44) will be overritten. Now I want to edit this but that dont work. What could I do?
The question marks mean that the associated track on MusicBrainz does not have information about the track’s duration. It is not a tag that can be overwritten, because the duration is a feature of the recording itself and not tagable metadata.
In addition to @mfmeulenbelt’s answer: You could add the track length to the MB database first. If you think your song without track length could be this one: