motion blur issue with multiple objects overlapping

[erich_schraub]

I have a scene with a helicopter that has 2 rotors on top. When the motion blur is on and they overlap at certain areas i get a black line going through it(see attached) Its not always there, just seems to happen when they overlap just right, has anyone seen this issue before?

[hermit.crab]

Try increasing the motion blur's geometry samples either globally (Render setup>V-Ray>Camera>Geometry Samples) or on a per-object basis (right-click object>untick Use default moblur samples>Motion blur samples) and see if that makes any difference. If not, do send a stripped version of the scene via the contact form so we can take a look (mention the animation frame where the issue is present). Address it to me in the subject and include a link to this thread in the message.

[erich_schraub]

i sent you a message/3dmax scene via the contact form, example frame shown here is 114 which highlights the issue

[hermit.crab]

Just to inform you, we are investigating the scene. I'll write again whenever there is more information.