This is a tricky one. It demands visual demonstration.
As you can see, we can see each other, as well as all the other characters and placeables in the area, through the window. Why, then, is that not the case here...
I know those two seem really dumb, but the Handmaiden and Exile are in the same place in both shots. The poor Handmaiden can't see Tienn and his droid or any of the placeables in the room, either. And when I put placeables near the landing pad, those aren't visible from the garage.
Now, I know it's not the VIS file. If it were that, you wouldn't be able to see anything at all. So what is it? The window's model? Missing TXI file? Some other obstruction? Any ideas?