Here is the image

And here is the file
http://www.brookerivers.com/animeissues/files/ - (right click save link as)
This is just a basic demonstration file of the problem I'm encountering. The actual character I'm working on has pupils, eye glare etc. The eye glare that is white gets covered fine, just not the black eye itself.
I have also tried removing the stroke etc - but still no luck
This is doing my head in!! Are there any work arounds or has anybody else encountered this?
Thanks in advance