Update:
In order to resolve the OSL compilation issues experienced due to changes in the NVIDIA Drivers, you will need to ensure that you have installed a supported driver for your version of OctaneRender.
- OctaneRender 4.02.1 and higher requires NVIDIA driver version 419.17 or higher.
- OctaneRender 4.02 and lower requires NVIDIA driver version 417.71 or lower.
If you are using a driver that is not supported, you will either be unable to render at all, or renders will fail with OSL compilation errors noted in the OctaneRender Log.