The URL Routes for the user profile do not work with SEF URL re-writes enabled in nginx. Specifically for the addresses area - the buttons to "Save" and "Save and Close" do not work (the URL is not being mapped to the a tag). When you selecte "Shipping" or "Billing" from the drop down, an nginx 404 page is displayed. I ahve looked through the component files and see the URLs are hard-coded, and am not certain if there are any other hooks needed to get them to comply with the URL re-write logic in Joomla.
Thank you for your help!