Quote - When combining an IBL and sun light, one can get weird results. Certain IBLs also give a strange effect, so it's a matter of letting the render run till it disappears. Not sure why you'd need an IBL and sun, though.

 

 

Cause the sun is consistant with the rest of the lighting in y story il let it bake later and see how it goes to me it looks like it may form some light reflection pattern.