if you try to create an address for a new, unsaved user, you get a null reference exception. Steps:
- In User Management, create a new user. Enter a name and other fields but don't save yet
- Click Addresses on the toolbar
- Click Add address
- Enter the address details
- Hit Save and Close
That's when you get an error. I assume it's because there's no user ID yet. Maybe just prevent users going to Addresses for unsaved, new users?
Imar