I’ve spend gobs of time trying to sort this and can’t figure out why my scene in Layout has this weird gray background – maybe like a sky setting. In sketchup, the same scene shows against a white backdrop.
Sketchup image on the left; Layout’s interpretation on the right. Why the difference? I’d be happy to share files but not sure how to do that here. Huge thanks for any advice!
I opened the SketchUp file, went to the SectionA scene, switch the Camera to Perspective, and select that part of the model. Swithched back to Parallel Projection and used Zoom Selection to reset the camera. After saving the SketchUp file and updating the reference the gray background goes away.
This isn’t a good idea and you shouldn’t need to do it in the first place as it can create a lot of work if the Camera gets reset for some reason or if you need to modify the scene in SU. Here’s the mess created when resetting the viewport.