Cutaway issue

[JasonM1972]

Hi There

been a busy bee working on my current animation, just finished the final scene and I appear to be getting some sort of weirdness on the tube part in the blue body.

The components were created using Inventor, so far I have tried importing as a step and .ipt format, I still get the same result. Next I modified the geometry by reducing a couple of OD's (outside diameters) on the tube part and the hole through the body as they are a tight tolerance but this didn't help either.

So once again I'm stumped, any idea's?

[Rex]

Hard to say without seeing the scene. Co-planar surfaces can cause issues like this so that would be my first thought.