I don't have a clue what you're doing at this point as you're confusing User Management and Profile edit/view with the Payment Basket, which is the only location the invoice address can be changed.
I'm not doing anything other than reporting an issue that has appeared after we changed from the licensed version of CB Subs to the GPL version last month.
I think we've gotten off track here. Forget about baskets and notices and everything else. I only brought those up to illustrate what I found in trying to diagnose the issue.
The bottom line is that when either registering a new membership or when a current member attempts to change their address during renewal, the system will not save that change.
So, if the developers did not want users to be able to make changes, then why is this option available? If this option was included to allow such changes, then it does not work and there is indeed a bug in the program.
I don't know how to express this more clearly.