Inconsistent artist imagery?

[sn0wy0wl]

So I have around 70 different artists in my library, and all is nearly well!

All the artists have their artwork displayed... except two. I'd just like to know if there's a particular work-around for this?

The two bands in question are: Tool  and  Adema

Though it's not like they're unrecognised bands, and there is certainly an image somewhere on the database as it gets shown when I go to the Artists page. These two just simply do not appear in my library - and it irks me so!