I’m working on a very complicated house, so I have multiple “layers” set up - floorplans separately, walls separately, doors separately, etc. Each one is then imported as a Component into my “House Assembly” workspace, so I can either modify it “on-site” (and then Save Out to update the .skp file), or open it as a separate Sketchup instance and make modifications on the layer itself & then "Reload” in the Assembly file.
Just ran into a weird issue I’ve never seen before - importing one of the layers caused the ENTIRE workspace to “twist and shatter”:
…even items that have nothing to do with that layer:
Opening a fresh file and importing things in a different order worked to solve it. But I’m wondering if (a) anyone has seen something like this, and (b) is there a solution that doesn’t involve redoing everything from scratch?

