you could check the following: heK7pH7;d
r|qp3x
- if the surface/element tilt is too large UTH_^HAN#G
McQe1
- enough analysis rays used? HZf/CE9T
pn5Q5xc
- have you used Coherent Data option under Detector setting. wD]/{
jw
TTTPxO,
Someone above was right about that the non-sequential mode only uses geometric rays but you could see inteference fringes using Coherent Data.