In camera views and some 3d view in pretty much all my projects on multiple machines I get a semi-wireframe effect. Where I have thin elements such as wall base extension or trim modelled on the wall I can see through those parts. Views are hidden line, no transparencies in wall materials. Effect goes away when zooming in on an element.
Sounds like you are describing a common issue where a super thin layer doesn't hide what's underneath it, but I don't see that in your screenshot. I see what looks like surface patterns. Maybe they're not.
It does look mostly like it yes, but there is no belly band between the 2nd/3rd floors. That is the wall geometry showing where there is a wall base offset to cover the floor where the siding runs past the floor.
