I am attempting Visualizaton for the first time, thrashing about the program for a bathroom renovation project. In PV360 the background image comes through the glass block window nicely. In Vz, the window is dark but the background seems to leak through the walls, turning my neutral gray room an eerie green. Any clues what is happening? I could make a panel just outside the window and put a foliage image just on that, but I would like to know what it going on. I'm using 2018.