In the NVIDIA Control Panel (not "GE Force Experience"), PLEASE enable Ambient Occlusion. Right now, no matter what I do (even turning it on "universally" first), this is a locked option, and does not permit one to include Ray Traced AO in AE.
I'm not sure why this is turned off, but I use it for Ray Tracing with Element 3D, Maxon Red Giant Software, and Stardust.
Without the Ray Traced AO, it looks like junk. This used to be available without any issue, b/c I have previously used Ray Raced AO with these plugins.