If you see an error during the rendering process, such as a crash, it may be because of a geometry causing this.
I often encounter this while rendering Cycles-based hairs figures/props with the base or the scalp using a cycles nodes. often I  switch the scalp/base to posersurface and it works.
I've contacted the support during 2021, and I know that they are working on this problem, because of a bug that is hiding quite deep in the Cycles/RTX part of the rendering engine.

For example with this figure: it's a Sasha-19 using one of Afrodite Ohki's Hairs for La Femme:

Something you can check also: be sure to use a Studio version of nvidia's drivers, often their game versions are bugged.

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