Hi again! If you look at the floor plan, you will see there are only walls and no floor. Try deleting one wall and redrawing it. Hope that helps!
Hi! Just a tip, if you want the ceiling to disappear and keep the floor, try raising the wall height. If you deleted the walls, just click on a corner and draw a wall again and connect that wall to another corner.
Hey! I can't see your room either, try moving the camera forward because sometimes the camera is inside the wall. Hope that helps!