you could check the following: wVMR&R<t
]hC6PKJU
- if the surface/element tilt is too large }iBFo\vU
PSR21;
- enough analysis rays used? sSdnH_;&
>`S $(f
- have you used Coherent Data option under Detector setting. 4],*y`& g
.^ o3
Someone above was right about that the non-sequential mode only uses geometric rays but you could see inteference fringes using Coherent Data.