1. The duplication of image area in print is right behavior for INSIDE bleeds. That is the area supposed to go inside the binding gutter and if properly bound the image should appear from left page to right page in continuity, and the duplicate area not visible outside binding hold.
2. It is not clear why you get the white edges as shown in the first screenshot. Please describe the layout/imposition. Have you used a SPLIT image on right and left pages? Have you used any imposition arrangement where the facing pages are reforming with pages of other spreads?