I am having trouble with the Advanced Permissions for Block Instances. I have been looking through the forums, but haven't found an answer.

I have created a new group, "Session Managers", and added a user to that group. Then as Administrator I went to a page on the site, edited the page, clicked on a content block and selected Set Permissions. I added the "Session Managers" group as Read/Write for that block instance.

When I log into the site as that user, and go back to that page, I don't see any edit capability for that block instance. The same holds true for Block Areas. However if I give the same group read/write capability on the whole page, I am able to edit the whole page.

Any thoughts what I am doing wrong?