Turn on display of non-printing formatting characters.


Showing non-printing formatting marks in Microsoft Word
Word's Reveal Formatting Codes


There should be no need of those section breaks. Instead, use Page-Break-Before paragraph formatting on the paragraph (heading?) you use to start a new page unless you have some reason for a section break.


If you want, save those first four pages in a separate file and post it here. How to attach a screenshot or file in this forum.



Also, check with your publisher. Standard book publishing calls for new chapters to begin on an odd-numbered page (on the right side).