Ok, thanks a lot for the optixPathTracer reproducer.
I can see the same error with the first two sources optixPathTracer.cpp/.cu on my test configuration and will file a bug report against OptiX.
I also tried without the curand.h include, matched the debugLevel of the OptixModuleCompileOptions and OptixPipelineLinkOptions to both use OPTIX_COMPILE_DEBUG_LEVEL_LINEINFO (that’s incorrect in the original example), and fixed the warnings of the printf("prd is %u\n", prd)you added. Pointers are 64-bit and printed with %p.
No change to the failure.