If they aren't, use the Header/Footer toolbar to set it to this.
Make sure that both the Header and Footer are set to “Same as Previous”.If it's a continuous section break, you will first need to temporarily create a page break at the end of the document, so that you don't go into the previous section's Header. Go to the very end of the document, and go into the final section‘s header.Fortunately there is workaround you can use it to get rid of it. If you want to get rid of it, you first have to make sure that the section formatting of the final section is identical to that of the preceding one. However what isn't that easy is removing the last section in the document.