Hi olio,

It has nothing to do with the geometry (I guess), but it more depends of the surface/lighting settings. I had this kind of trouble with MoI geomtry (once), but also
with models build inside modo.

This pink dots are 'rendering error', some kind of division by zero stuff, I don't know more.

Try to change some lighting settings (reducing lighting power), disable any hdri env map, remove reflection/splecular on the surface that seems giving pixel of the death, until you find what appends ... and maybe create a bug report with a scene sample, so they can fix it.

SP2 is supposed to come at the end of the month, I hope it will be completely fixed :S