Album not linked to artist

[Jovawankenobi]

I was looking for all albums of Skunk Anansie but I realized something was missing. In fact the collection "smashes and trashes" is not displayed in the album lost of the artist. Even searching it in the search bar show no results.
But Google can find the direct link of the album directly on spotify! Then you can save it as usual! Is it normal? Is something concerned with artist permissions or something lime that?
Thank you