This is a snippet of a large file and I’m having trouble reproducing with a simple sketchup file but maybe the buggy objects are able to give enough of a clue:
These polysurfaces seem confused about what their shaded color should be. In wireframe the color is correct per their settings but as shaded it matches the sketchup file (a painted face). I can supply the original sketchup file tomorrow if you’d like it. Editing the block and exiting bugs it out even more.
Witchy Objects.3dm (574.6 KB)