The instructions you were given via the links in this thread:
https://www.msofficeforums.com/word/...rd-2016-a.html
do work if followed.
Evidently, some of the edits you've been making include adding/deleting Section breaks and/or header/footer content. You need to pay close attention to the relationships between these various elements.
PS: Please don't hijack other threads on what are only loosely-related issues and don't start multiple new threads on closely related issues. I have merged your other new post with this thread.