Because the album edit page is broken in several ways & I can't get you know who to fix it as he has no free time to.
In this instance, there's one B&B song on this page, but somehow all the tracks were changed to their ArtistID (408). Did you notice the server error message when hitting one of the screwed up links?
That's something I can't fix. I can try to fix the artist credits, but who knows how many albums this latest bug has affected? This is a coding/server problem.