VRay7.20.10 and Houdini 21.0.512 Packed Geometry Crash on Render

Hi,

I stumbled on an issue with Vray 7.20.10 and Houdini 21.0.512 that crashes Houdini on render with either a Vray.dmp message or instant full crash closing Houdini.
It happens when using a chain node to place geoemtry on curves and after that pack them by connectivity.
If the geometry is not packed it renders just fine. After packing it crashes on first or second try of render. It doesn’t matter if its on IPR or normal Render Mode. Karma renders fine without crashes.
I attached a simple scene with just cubes placed along curves. No additional attributes are added on the geo.
With the attached scene, when you click on ipr render it will crash immediately.

Looking forward to any response, thanks.
Julian
chain_error_h21.zip (95.7 KB)

Dear @julian_schwarz , hello.

I was able to reproduce the crash right away.
It is now logged in our system with HOU-5083 number for further dev investigation.

We will inform you by any news.

Best,
TS

Hey! Yes, I like to bump that +1 , we really need that fixed. Thank you!

Feel welcomed to download our latest nightly builds # 23161 (now available in Download portal as well) and grab a build, where no crash is experienced anymore!

Happy Friday.

Thanks! This works well.