If the page is truly blank (no header or footer) then it is likely that the section break is either an odd page or even page section break.

If there is headers/footers then there may be a page break + section break or a pagination setting that is causing the issue. It is hard to diagnose without seeing the file but I normally change to Draft view and show hidden formatting in order to work out issues like this.

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Andrew Lockton
Chrysalis Design, Melbourne Australia