Windows in tool pallets covered by solid hatch in walls when laying out floor plan

[Jodi Muir]

Hello everyone, I've always layout my floor plans three dimensionally with the tools pallets commands such as walls, rails, door, windows & ect. I always have my walls pre-hatched with the solid pattern which is really effective to the floor plan. Normally when I put windows in the wall the window is clearly shown without the hatch in the wall but for some reason my wall's hatch started covering the windows and I can't seem to solve this problem.