UE4.23 video driver crash with raytracing enabled

Hi there,

Have been working on several projects which use ray tracing. A lot of them are working fine however one of my projects crashes on load with a video driver error. UE suggests using the latest drivers, which doesnt help. I have to go way back to version 411 drivers for the project to open again (but no ray tracing, im guessing due to old drivers?)

I am using two nvlink’d 2080 ti (have tried just using single, with no change)

Any tips would be appreciated!