Onshape's v9 API has no translation that picks a face, so to get a DXF for a flat part they read bodydetails geometry and draw the face themselves, at one or two billable requests per part.
From the Grok pain-radar digests, Oct 28-29 2026 (Oct 28 8:41 AM ET through Oct 29 early-morning Haitch editions). Verified live 2026-10-29: issue/PR read; title and state confirmed.