Hi there.
I had a similar issue. I could check any bleed and crop mark box in the piece of software but the picture wont touch the cropping marks.
The issue was in a afdesign file. Created with AF Designer and I edited the pictures with AF Photo (minimal invasive with filters). Everything was fine back then a year ago when I created the file.
Yesterday I had to update some things in the file and send it to print again. 2h before my deadline ended i encountered the issue.
Solution: I applied all the live filters I added with AF Photo on the pictures. That was it with my minimal invasive workflow picture wise, but at least I had this issue solved. To be precise it was the "focal length" live filter that created that bug. As soon as the live filter disappeared from my file the PDF export with bleed worked fine again.
Hope it works also for you and spares you to switch to the big "A"
