VRay RT flickering

[Stirling]

I feel like I'm just missing something here but trying to use activeshade and something very strange has started happening. The frame buffer opens and appears to start progressively rendering, then flickers and starts again. This just keeps continuing.

Any ideas what I might have done wrong?!

I have 3.20.02

[Stirling]

Resolved. After a LOT of trial and error it was a loft causing the issue... no idea why.

[vlado]

Lofts have problems like this, yes. Hopefully Autodesk will resolve this eventually.

Best regards,
Vlado