My team and I are working on some booklets for a client and when we export for Print with CMYK, the images duplicate somewhat when they are spread across two pages. Please see below, we are sure it has to be because of the import settings, just not sure how to correct it.
I'm not completely sure, but I've got my suspicions ...
Like a lot of graphic designers, when I want to place an image across a reader's spread, I do it twice: one directly above the other.
I click on the top image with my Arrow/Selection tool and drag the anchor point in the middle of the right side to the left until it meets the left-hand page's right page margin in the spread. Then I click on the lower image that's been uncovered on the right-hand page, dragging the anchor point in the middle of the left side to meet the right-hand page's left page margin in the spread.
This gives me two copies of the image when the job is broken up to turn reader's spreads into printer's spread that appear to meet "perfectly" when the book is bound at the end of the process ... unless I accidentally bump the images while I'm trying to line the two examples placed in the margins. Or when there's overlap, someone in prepress bumps it to make sure than any crossover in the saddle doesn't let the images place "perfectly" on each page of the reader's spread.
So, to fix it, I'd go back to InDesign, and go through the process I outlined in the first and second paragraph of this response to get the "perfect" alignment without any crossover or offset in the job.