BuddyPress.org

bpinspire – Just to be clear: you are going to the Edit page for a group, and you see all the current members on the left, but you only see friends in the list at the right?

I haven’t tested on a single WP but I don’t think it should make a difference, as the user list is pulled right from the BP_Core_User class. Any more info you could give would be helpful – screenshot, maybe?