4.22.1.123 PB blue circle o' death when changing textures in Iray preview

AliKat

Noticing if I'm in preview mode and changing textures in a scene that DS will sometimes spin the cursor indefinitely
Task manager shows CPU usage drop to 7%,
Power Usage Very High
Application status Not Responding.
Nothing logged because the process never finishes. This issue is more common for me in the last few PB's. CPU is liquid cooled, system has several fans, it does not sound like they are being taxed or any overheating.

Nvidia Studio drivers 551.86, RTX3060 12GB, 1660Ti 6GB
Studio 4.22.1.123
i9 18500K 3.3/5.0 GHz
64 GB DDR4
Corsair 850W PSU
Samsung 860 Pro SSD

Richard Haseltine

How long have you left it working? If you are using an nVidia driver very different (newer) from the minimum have you tried rolling back?

AliKat

1 min to 30 min, nothing else is running except bare minimum services. I might bounce into Blender or Photoshop from time to time but I likely don't have them open when this happens. I have not tried rolling back GPU drivers but I did see this sometimes on the previous drivers.There was a clear undo stack script I tried but it's old and may not be viable any longer.

Another thing I'm also seeing sporadically is where volumetric models will do a render preview one time, but on the next time I preview it says in "gray poly" mode. but no spinning circle. I've tired deleting objects in the scene but it either does not trigger the preview or it does go to the wait circle and eventually stays there.