you could check the following: H|e7IsY%
j0"4X
- if the surface/element tilt is too large p%iZ6H>G
E<D^j^T
- enough analysis rays used? N MkOx$
9e.v[K~
- have you used Coherent Data option under Detector setting. qsEFf(9G
J>+\a1{
Someone above was right about that the non-sequential mode only uses geometric rays but you could see inteference fringes using Coherent Data.