This shouldn't happen but I have seen documents of my own do this in the past. I can't remember if there is a fix.

It may be related to the dropcap issue in your other thread. The section break might be getting tangled up with the object anchor of your dropcaps.

You could always create a macro to force all sections onto odd pages and run this anytime you notice the problem.

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Andrew Lockton
Chrysalis Design, Melbourne Australia

I actually had the problem in two different books, and one of them does not use dropped caps.