In the images below it shows it but every image thats created in illustrator, brought into Indesign and then turned into a pdf will do this, the pdf has white lines running down some of the lines where it begins to tint. I've made sure all the colours are process and tried multiple printers.
Any help would be great as I've already tried re creating the images and it hasn't worked.
Please show us the InDesign page with frame edges visible.
Also, what happens if you go directly from Illustrator to PDF? Does it happen then?
Report on that, and it might be helpful to see the vector images in Illustrator with the Appearance and Layers panels.