Hi, when I preview this part of my script (below), the mirror creates first, then the screen gets dark with the hsl for at least 3 seconds, then the room gets light again and "RUBY IS M’’ and “MATEO” (the reflection for this moment) appear out of nowhere and the story goes on normally. Does anyone…

I normally have the hsl command before the background. E.g: &hsl blah blah in 0 INT. BACKGROUND NAME #the rest of the script here