Hello Karlie,
When an overflow happens, all other pages in your document (not just the overflow page) is repeated. In order to prevent this, all you need to do is to add a condition on those pages (Statement 1, in this case) that hides them when within an overflow. This condition is:
=not(¤t.overflowing)
Just add this in the "Conditions" box of Statement 1.
As for your extra blank page, it seems to me like it's iterating over an empty line, perhaps. This is a little harder to guess, perhaps you can try to put a condition in the "Iteration Condition" box in your overflow setup and see if this resolves it (check if a certain place is empty, if you have any where there is always data).
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Évelyne Lachance
Technical Writer
Objectif Lune Montreal