you could check the following: 6D|p Qs
F%
`zs\
- if the surface/element tilt is too large }`9jH:q-Z
n +2%tW
- enough analysis rays used? iox bf6{
=~&VdPZ
- have you used Coherent Data option under Detector setting. H9 U .lb
:5J_5,?;`
Someone above was right about that the non-sequential mode only uses geometric rays but you could see inteference fringes using Coherent Data.
