On my control panel, I see this on my edit page.. but nothing under it shows up. I can check these off and save but it will not show me the rest of the page. It came up once when I tried to signed in with another admin account.. when I logged out of that account and back in I could not see the page again.
I see this...
Show Administrator role at User Role Editor
Show capabilities in the human readable form
Show deprecated capabilities
has a save button..
but nothing under it on the page is loading..
I can give you access to the site if you would like to see what it is doing for yourself.. I tried this on google chrome and explorer.