Rhino 7 → SketchUp export: hidden tags leave stray lines behind

I’m working in Rhino 7 and exporting models to SketchUp. I’ve properly grouped my geometry into blocks and assigned layers (tags) to them before exporting.

In SketchUp, each layer shows up correctly as its own tag. The problem: when I hide a tag in SketchUp, the object doesn’t fully disappear. Instead, connected outline/edge lines stay visible — like a contour of the object, but not filled/shaded. The surface itself is gone, but the lines remain.

If I try to delete those leftover lines, it deletes the whole object instead — which makes the file unusable for people who only work in SketchUp (e.g. for architectural/building models).

I’ve read that this might be a known issue: surfaces get correctly assigned to the tag on export, but the automatically generated outline/edge lines stay untagged.

What’s the fastest way to fix this — either an export setting in Rhino, or a clean workflow to correct it after import in SketchUp — so the file works properly for SketchUp-only users without this manual cleanup every time?

Thanks in advance!

Hi Jennifer,

This is RH-74214, the exporter tags the faces but the auto-generated edges stay Untagged. It’s fixed in Rhino 9, faces and edges both get the layer tag now, verified against SketchUp 2022 and 2026. There’s no export setting in 7 that changes it. The quick cleanup on the SketchUp side is to hide the Untagged tag along with the one you’re hiding, all the stray lines live there, or select and retag them instead of deleting.