I'm using BP 1.7.2 and BP Group Extras 3.5.7.
When I go to Extras-->and reorder the items - Home, Activity, Forum, Admin, Members - and hit Save, it works great.
However, I have BuddyPress Docs and BuddyPress Invite Anyone plugins installed which extend the groups. By default they create navigation links in groups titled "Docs" and "Send Invites". If I try to change the order of these and hit save, the changes don't hold.
Here's what I want:
When I hit Save Changes, it returns to this:
Notice it just returns Docs and Send Invites to the bottom every time.