Probably some other software issue is causing this I am not sure. It only happen once a day, the first time I load 3dsmax in the morning.
Then creating a VRayIES object, click on the target of the VRayIES to position it … CRASH! Don’t know if anyone is experiencing crashes with VrayIES?
I used them a lot yesterday and had no problems.
Does it help if you update video drivers, switch between DirectX/OpenGL etc? Basically the viewport interface of the IES lights is identical to that of the V-Ray sun, do you have problems with this also?
Best regards, Vlado