Sectioning conic rounds, the kind SolidWorks exports for conic fillets, returns two straight chords per round, up to 0.435 mm off the true section, with profile area 0.7% short. Imported geometry quietly loses accuracy in the next tool.
From the Grok pain-radar digests, Oct 31-Nov 1 2026 (Oct 31 9:41 PM ET through Nov 1 7:41 AM ET digests plus the Haitch overnight edition). Verified live 2026-11-01: issue/PR read; title and state confirmed.