Hello again, everyone,
Although we suspected a more complex issue at first, after investigating in detail more than a dozen cases, it appears that the cause was solely due to the Windows 10 Creator’s update and how it affected NVidia GPU drivers.
If you are still experiencing any issues, please install the latest Windows 10 updates and the latest NVidia drivers for your GPU model.
If the issue persists, and you happen to be using multiple GPUs linked together, please disable SLI. The V-Ray CUDA engine will still utilize all available devices.
If anyone needs further assistance, please let me know!
V-Ray for Rhino QA