you could check the following: 9vAY|b^
{Q&@vbw'
- if the surface/element tilt is too large BRTM]tRZ
9{{|P=
- enough analysis rays used? jK[~dY
$6(,/}==0
- have you used Coherent Data option under Detector setting. /GzA89N(
IsaL+elq|
Someone above was right about that the non-sequential mode only uses geometric rays but you could see inteference fringes using Coherent Data.