But the first thing that is important for me is if the NaN bug is solved. Unfortunately, it is not. Every time there is a sky object in a complex scene with light material for seen, reflection and refraction...
I have several problems in IR render. Sometimes the material disappears from the object and is only white in the IR, other times the whole object disappears. Even restarting IR doesn't help, but I have to reload the material. Also the render instances display badly, I'm using surfacespread 2. Multiinstances are of course unusable in larger scenes, this will crash C4D completely!