I had Groups working perfectly but as of today, the restricted pages are displaying "Not Found" headers instead of the correct content. I upgraded to 1.3.10 and thought that might be the problem, but I just reverted to 1.3.9 and it's still not functioning.
Here are screenshots of the site & setup: http://imgur.com/a/RGCap
The weird thing is that the navigation shows the restricted pages, but it just doesn't display the content. If I log in under a more restricted user the navigation automatically hides the restricted pages (in this case "Minutes & Agendas"). You can see that in this screenshot, not all of the navigation items show up:
Do you have any ideas as to why this is happening? I've gone through and deactivated all the other plugins and it doesn't seem to make a difference.