Hi Thomas,
this is due to a side effect of combining backtracking of photons parallel to a thin wire (injection does not work). Tehre is two quick answers:
- slightly change the Sun orientation, i.e. from 1 0 0 to 0.99 0.01 0
- use the spis 5.2.4 version (available in SPIS dust development area) that corrects the same kind of bug for particle detectors (not tested for photoemeission however). If that solves the pb please tells us
Best regards,
Jean-Charles