with no Rhino document open (Rhino.Inside, Compute, tests), the unit scale came back NaN, so every converter multiplied its tolerance by it and extruded faces got meshed and solids came back open with wrong areas. Companion fix notes rebuilt models lost real elements (79 wall piers and slab patches rejected as not panel-like on one house model).
From the Grok pain-radar digest, Oct 25-26 2026 (Oct 25 daytime to Oct 26 morning slots). Verified live 2026-10-26: issue/PR read on GitHub; title and state confirmed.