Private IP Field Still Displayed After Check Boxes Unselected

Target Instance IP (optional field) remains displayed in the deployment interface after selected Upgrade Stack and Specify Private IP for Target check boxes were then unselected.

Note:

Private IP field only appears if you selected both Upgrade Stack and Specify Private IP for Target check boxes.

Workaround: Recreate a fresh stack (by running a new Create Stack), using the proper documented workflow.