you could check the following: j0F&
W Kk
0LGHSDb
- if the surface/element tilt is too large sw$JY}Q8x
* W"Pv,:
- enough analysis rays used? A\"4[PXpQ
J>hjIN
- have you used Coherent Data option under Detector setting. TJcHqzcUc
]Gj%-5G
Someone above was right about that the non-sequential mode only uses geometric rays but you could see inteference fringes using Coherent Data.