I'm trying to cache a fairly simple vellum fluid sim, and my cache stops prematurely and when I go into the DOPnet to ascertain the issue, I see the following error...


Error
vellumobject1 - /obj/JP_rippleSim/dopnet1/vellumsolver1/graph_color_constraints: Error: Invalid source /obj/JP_rippleSim/dopnet1/vellumsolver1/graph_color_constraints/geometry.
(Error: vellumobject1 - /obj/JP_rippleSim/dopnet1/vellumsolver1/ocl_neighborsearch_fluid: Error: /obj/JP_rippleSim/dopnet1/vellumsolver1/ocl_neighborsearch_fluid/neighborsearchcl1: NaN detected in particle position.).

I have an nVidia RTX 4090 Driver 551.86

Houdini Indie 20.0.672

This is for a deadline, and I'd really love to fix this because vellum fluids are awesome, and the only solution I can think of to get this delivered.

**SOLVED**
updated to the latest nvidia driver, there was one this week.