Random thought:
We were about to upgrade our nvidia drivers but then I read the release notes. Seems there is a known issue with redshift or maybe a combo of C4D + redshift. Hard to tell from the way it is written, but still sounds a bit buggy in general.
On the release notes for nvidia driver 522.30:
Maxon - Cinema4D + Redshift3D vidmemory allocations cause TDR or Driver Crash [3659104]
Did you have this issue before you upgraded your drivers? Maybe try rolling back to 517.40 ? I haven’t seen anything specific to Houdini, just C4D and Maya (on some forums).