Export PDF file is driving me crazy

I have an issue with exporting: when I export a PDF file from InDesign and select the option to include the bleed area, I get two lines in the center of the file (see photo). These lines are the width of the bleed area, and part of the image from the other page is visible. I've exported documents countless times, and this issue has never occurred before. Now I can’t seem to make it go away. I need to include the bleed areas for printing, and I can’t remove the inner bleed areas because they are required to match the print specifications. Does anyone know how I can solve this problem so the two lines disappear?