Blurry renders on iray preview, not DOF

Unspec

Hi all,

Getting this weird blurry render issue in iRay preview mode. It'll basically render at super, super, super low resolution, and the pixels are almost a 1cm by 1cm on my 4k 27" monitor. Really low resolution. Sometimes it resolves itself for whatever reason, but a few times I've been forced to restart Daz because it just wouldn't fix itself. No DOF settings, same thing for cams and perspective view. Being powered by a RTX 2070, with CPU fall back enabled. Any ideas?

Spacious

I've experienced this from time to time, generally in scenes that use a lot of RAM and vRAM when I'm navigating in the Iray viewport for a while changing lighting and surface shaders.  It seems to resolve itself when I click on the dropdown that changes viewport render style, even if I don't actually change the style.  It may be worth checking to make sure that all your shaders are set up to be used in Iray, since 3DLight shaders, and especially old Poser shaders will give Iray some troubles.