I must also say that I’m getting very bad flickering with UE and the 4.1 binary.
I also just tried replacing the default skylight I had in my scene with the skylight and got a huge drop in performance. Is there an explanation about how the two lights differ somewhere? I realise the skylight doesn’t need the skylight cubemapRT hooked to it.
another strange thing happening with binary is a huge line arcing through the sky (can be seen in the flickering video posted by unreal_mike).
One last note - is it possible to stop from drawing in every single editor viewport??
Thanks guys.