So, a really simple model.
Initially I decided to use Skalp’s Rear View Projection, to show the roofing layout, on the horizontal section.
Since editing the design, I no longer need this projection, but for the life of me, I can not turn it off. When I disable it in Skalp, it goes. I update the scene. When I click on the Scene again, it’s back, despite Skalp showing it not switched on for this scene.
I’ve tried to upload the Sketchup file, but it’s 7MB, and it’s stating it’s too big.