Hello, thank you very much for your prompt reply.
I am experiencing exactly the same problem.I tested the method you suggested, but when using ray lighting modes in Post Process, both HitLight and Hit Lighting for Reflections cause red artifacts in reflections. There also appears to be abnormal emissive glow across the scene.Only Surface Cache calculation works properly.
However, this method removes diffuse lighting entirely, making shadow areas highly unphysical and unrealistic.
