The curved surface look as if they are being made from planes

The project is model in Revit and taken via Datasmith link

The curved surface look as if they are being made from planes like (hexagone/octagone/polygon)

there comes a shadow imact on surfaces to look tiled vertically

Hello, this look like a bug to me, I would suggest that you use the "contact us" to report it to our support team.

Once submitted a support agent will contact you.

Thank you

MC