Title as link is inconsistent

I’m trying to find out how this is supposed to work.
Sometimes the title in Now Playing is a link, and other times it isn’t. When it is, the title is blue; when it’s not a link the title will show up white.
When I can use the link it will show me all identified versions of that title, which is a nice feature. What is missing in the metadata when the title is not a link?
The one below is not a link. The album is properly identified.

and this one is

Funny thing is, when I do a search for that title it does get found multiple times, including the one that is no link.