you could check the following: 6}e"$Ee}9
@C6.~OiP
- if the surface/element tilt is too large i9k/X&V
'x!5fAy
- enough analysis rays used? k
M' :.QT
D.R 7#^.
- have you used Coherent Data option under Detector setting.
\py
\rI
=`6_{<&
Someone above was right about that the non-sequential mode only uses geometric rays but you could see inteference fringes using Coherent Data.