I just put together my son's first book, 101 pages. I found that if I turned off vivid pics on the layout in the album that I uploaded to ( before adding the pages to the book) then the pages were cropped ( zoomed in ) and I had to go into edit them again after putting them into the book ( when you click on the page and it brings up the edit options) and extend out the crop area to show the whole page. If, however, I inserted my layouts into the book, then clicked on them to edit , and then turned off vivid pics that way, i didn't have the problem.
I don't know if this relates to your problem, but that was my experience.