The engine strictly validates door-cell indicator data, but the Fold Designer snapshot first ran a GUI repair that silently swapped invalid lamp counts and offsets for defaults. That could make bad saved manufacturing source look like valid holes in the DXF output. The fix rejects it before the snapshot.
From the Grok pain-radar digests, Nov 2 2026 (Nov 2 8:41 AM ET through Nov 2 10:41 PM ET digests plus the Haitch editions). Verified live 2026-11-03: issue/PR read; title and state confirmed.