Failed to create OptiX denoiser

[VrTech]

Failed to create OptiX denoiser

Refer to the Cycles GPU rendering documentation for possible solutions: https://docs.blender.org/manual/en/latest/render/cycles/gpu_rendering.html

E1216 11:29:07.508268 1742 denoiser_gpu.cpp:119] GPU denoiser creation has failed.

This was working all well last week however, it's now bugged.

I'm using T4