Crash when rendering renderable spline

VRay version is 1.5. Scene that crashes is here:
http://studio.vianova.fi/Temp/Crash01.zip (21kb)

It doesn’t crash if I make the spline renderable geometry visible in viewport.

I have rendered the same scene with 1.4x versions without problem so this is new to 1.5 VRay.

Thanks for the pointer; I will take a look at the scene.

Best regards,
Vlado