Are you trying to place an interactive PDF and expecting the interactivity to work in a newly exported PDF? If so, it won’t.
That's pretty much what I figured, but I wanted to see if anyone around here knew any better.
Thanks for answering, Bob.
There is a better way. Just combine them in Acrobat.
It becomes overly complicated if I do that. I have buttons and other elements in the new layout as well and it's an 80 page document.
I'm copy and pasting from one into the other now. Not ideal, but it'll work.