I think I have an issue with my renovation filters. I have marked some walls in red circles in attached image. You can see these walls are showing material markings unlike all the other walls which are filled with solid black. The walls that are showing differently are all "new construction" whereas all else is "existing", which leads me to believe it'll be something in the renovation filter.
I don't think I understand the difference between "cover fills" and "cut fills" to be able to identify where I should be looking.
Thanks David! Indeed, it is all in the overrides. The reason all the other walls in "Existing" are black is because they are being overridden. I can do the same override to the walls in "New Construction".