Bluebeam / Archicad Issue

[Andy Melaragno]

I just completed my first model in Archicad and when I published to a .pdf the vectorial hatching on the elevation drawing shows up blurred when I open it in Bluebeam (see attached). It opens with Adobe reader just fine. Has anyone else had this issue with Bluebeam and if so, where you able to solve it? I tried using the stone pattern from Archicad and it does the same thing.
Thanks.