Dear WINDOW-Team,
unfortunately, there aren't written any BSDF matrices to the *.csv and *.xml file.
We encountered this for glazing systems without shader as well as with an internal homogeneous diffusing shader. (We didn't test venetion blinds).
The options "Use matrix method for specular systems", "Write XMLBSDF output" as well as "Write CSV output file" were selected under the "Preferences -> Optical Calcs".
In addition, the simulation engine "Tarcog" was selected.
Thanks for taking care of this issue.
Kind regards,
marion