07-15-2021, 02:21 PM
I'd suggest lodging the report with ChaosGroup. I don't control what happens during those rendering phases. There's not really an internal difference between collecting cache data for rendering and scrubbing to that same frame on the timeline. So if time doesn't increase with each frame when you play the sequence back in the view, then perhaps something internal is happening in VRay to cause the slowdown. The possibility exists that it's a tyFlow thing, but CG are the only ones who can confirm it.