Hi, mashtonsmith. First of all, I hope you mean next-page section breaks, not simple page breaks, between portrait and landscape. As for the "linked" changes, I suspect that when you created the document, or at some point thereafter, you applied the Different first page to the whole document, not just that section. It sounds as if your other sections are behaving the same way. Check each section from Section 2 on, to make sure that your page layout applies only to "this section."

Does that solve the problem?

Best,
Ulodesk