@Mis nova. Yes I tried all the option that you mention. Even I delete the glass and I made new one, "trace reflection" checked/ unchecked, Delete the light, delete the white plane. so many things, but didn't help.


@ Gen
"trace reflection" to be unchecked? was just to test if there is problem with this option. but seem checked/unchecked didn't help.

Yes I do have maya materials lens attached to the camera, you think bcoz of that. here is the screenshot

regards