I have created a Delegated Admin Group and add few users to this group. The Delegated Admins have access to a Public Group. This should allow them to add users to the Public Group.
Some of the users are able to see the option to add Users, Roles, etc to the Public Group. However, other users only see the option to add other Public Groups (See screen shots below). I have checked the permissions for these users and as far as I can see they have the same permissions - same profile, roles, permission sets.
What should I check to allow Delegated Admins to add individual users to a Public Group?