I cropped a 2 page business card PDF file so most of the bleed and cropmarks where cut of.
I wanted my card to have a Trim Size of 85 x 55 mm and have a bleed of 2.5 mm.
Doing so - when I place 2 cards right next to each other, I have a 5 mm gap. This is what I want.

The cropping looked like It was doing ok, I opened the cropped pdf and it looked fine.
BUT when I try placing this cropped pdf, suddenly its placing the pages like it was never cropped!
Its placing the full original mediaBox size. Theres a bug in there somehow...
I even tried placing the cropped pdf in indesign and "brew" a new identical pdf, to se if it was a bug in the file.
The indesign pdf imported correctly showing the file as intended.