I'm on the beta team. Yes, things changed with the render option of "Use Cache" in Superfly. I had the same problems with that and also problems where I changed a camera and it would not update the camera controls for focus. I'd get a blurry render. Not sure what "Use Cache" is good for at this point so I have to have it unchecked so I can work on images.

W10, Ryzen 5 1600x, 16Gb,RTX2060Super+GTX980, PP11, 11.3.740