you could check the following: Jf?6y~X>Y
]Ac}+?
- if the surface/element tilt is too large {,sqUq (
]87BP%G
- enough analysis rays used? xA(z/%
~C%I'z'
- have you used Coherent Data option under Detector setting. SC~k4&xy
?< b{
Someone above was right about that the non-sequential mode only uses geometric rays but you could see inteference fringes using Coherent Data.