Looks like ray traced reflection has no effect on some surfaces.
Below is viewport with all raytracing enabled except transparency (and those wire mesh is masked not transparent)
As you can see the front face is total black for some reason. No GI, No reflection.
It’s black no matter the bounce and the sample amount of rays
Below is path tracing.
It obviously has reflection or GI.
The wire mesh object is actually a thin box that has correct face normal on both sides
I checked several times and there’s nothing suspicious with the object other than it’s from datasmith.
Any idea what’s causing this?