you could check the following: w2 CgEJ%
@T1-0!TM')
- if the surface/element tilt is too large .Yo#vV
(R.k.,z
- enough analysis rays used? W/fM0=!
l'c|I
&Y]
- have you used Coherent Data option under Detector setting. jo+T!CUM'
^m?h .
Someone above was right about that the non-sequential mode only uses geometric rays but you could see inteference fringes using Coherent Data.