Thanks in advance to anyone who can help with this as Ive run out of ideas...

I have set advanced permissions and created a group called 'editors'.
Ive set each site pages permission so that this group can view all site pages, blocks and areas
Under under dashboard, I've restricted access specifically to 'Sitemap' and 'Members'. Ive given 'editors' all system admin rights under file manager permissions and user permissions.

When I log in as an editor, I can click on sitemap, but no actual pages appear on the left, even though for a moment I see the little 'loading icon.

I can also click on members but no members show, however i have full access to user groups and groups sets?

Ive obviously missed something but for the life of me cannot think whats wrong?

There a two screen shots attached for clarity.