VRay Next Shadows flickering

Hi everybody!
I have some problems with animation render using Vray for grasshopper.
How can I remove shadows flickering in this animation?
Sorry, my English is not very good.
Thank you!

Hello,

Could you please send the project file to support@chaosgroup.com for investigation as I am unable to suggest a solution based only on the illustration you’ve provided.

Kind regards,
Peter