Viewport Iray shading takes forever

ANNOProfi

I have a problem in DAZ 4.21, I can not use the Nvidia Iray option in the viewport drawstyle menu, because it loads, but never renders, as soon as an object is in the scene. The loading bar in the bottom right is there, it is going from empty to full over and over.

The scene I currently have is empty, save for one G8F figure, and it has been rendering as of this writing for over 2 hours, on previous versions of DAZ it was never that long.

If a log is required, how do I get one, as I'm not that familiar with this side of DAZ?