Annual Daylight simulations - Mirror not taken into account

Hello.

I am running several daylight simulations of an atrium, and now I want see what the effect of placing a mirror on top of it is, on the Daylight Autonomy (DA) and Useful Daylight Illuminance (UDI). However, the results that I get with and without the mirror are the same, thus not taking it into account. Could you please help me resolve this issue. Attached you could find a snapshot of my GH script, as well as the gh file.

Thank you a lot in advance.

Simulation Pipeline_Atrium.gh (223.3 KB)