This feels like a very similar issue to the topic explored in the following link, but I’m unable to solve the issue using the same methods: Dotted lines no showing in layout
Sketchup Problem: In the tag manager, when I try to change the line appearance of a specific tag (in this case p_doorswing_ele and p_doorswing_plan) to a dotted line, nothing happens.
Layout Problem: This issue also manifests in Layout, where I cannot seem to get lines appearances to change, beyond adjusting line weight. I have tried to change p_floors to a grey tone, but nothing changes.
Happy to share SketchUp and layout files as needed via DM. Any help would be greatly appreciated.
In LayOut you could purge the file of unused references.
I also see that you have overridden the camera properties for some of the scenes. This is risky because it can create a mess if the Camera gets reset for the viewport. Example here.
Clean up3 will also untag the geometry and can also get rid of stray edges, unused components, materials and tags, fix divided edges and other things that I can’t remember right now, you can also set it up so it doesn’t delete any of the things above mentioned like tags if you have a template with default tags or materials, or don’t erase stray edges if you’re working with an imported dwg or dxf file, in my opinion it’s the best plugin that helps to keep your file clean and optimized.