You said this happens on renders from scenes built in P11 or p12? Have you tried changing your render settings or are you still using the ones from the older software?

You also said it's triggered by changing something in the scene. Are you doing background rendering? If so, have you tried standard rendering?

I can't say that I've had that particular error, but with the render errors I have gotten, it does seem to be that you need to restart the software to get it to render. (or try rendering)

Are you using the Nvidia studio driver? That seems to be the one of choice.

This might need a support ticket. https://support.posersoftware.com/

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