A family of Microsoft word processing software products for creating web, email, and print documents.
The key to the problem in the document that you posted is that each section break is followed immediately by a table. I found a hint in post #11 by Klaus Linke in this thread: "Are the section breaks right before tables? In that case Find/Replace doesn't work properly, and you might have to write a macro or do it by hand." He was writing in 2008 about Word 2007, but nothing has changed. <sigh>
This macro will replace all the section breaks in your document with page breaks:
Sub ReplaceSectionBreaks()
'reliably replace section breaks with page breaks
'even if they're followed by tables
Dim rg As Range
Set rg = ActiveDocument.Range
With rg.Find
.Text = "^b"
.Wrap = wdFindStop
While .Execute
rg.Delete
rg.InsertBreak Type:=wdPageBreak
rg.Collapse wdCollapseEnd
Wend
End With
End Sub
See http://www.gmayor.com/installing_macro.htm if needed.