J1.5.23, CB1.7, GJ2.4, K1.7, As a registered user, I cannot see the Parent option in group creation; we can see it as a site Admin. Have set Config > Categories > Defaults > Nested Enabled/Show; Nested Access = All Registered Users/Show; Config > Groups > General > Nested = Enabled; Nested Access = All Registered Users. Then in the category have set Nested = Enable and Nested Access = All Registered Users.

Still, when we click New Group the Parent option does not show up.

I asked

The difference between "all registered users" and "registered" in group access

Krileon wrote about "all registered users":

It's a custom usergroup that doesn't actually exist in Joomla. It's purely PHP and done through GJs API.

So perhaps you try with "registered"

Thanks - I tried that and it still doesn't work. I do have another clue, though. When I change the setting in the Category to Create = Enable & Create Access = Registered, then save the Category, it reverts back to Create = Disable & Create Access = All Registered Users. Before we upgraded, these settings were Create = Enable & Create Access = All Registered Users and it worked fine.

I see - a little confusing, though. Two questions:

1. What does Create Access = Register mean if registered users aren't allowed to access this feature?

2. Whey is it that when I change the Category setting (from the Admin side) to Create = Enable & Create Access = Registered, then save the Category, it reverts back to Create = Disable & Create Access = All Registered Users.