A JSON save and import round trip flips an antenna feed pad from masked to unmasked, adding a solder-mask opening that should not exist, and a wider 60-pad test lost ten coverage flags and thirty mask margins.
From the Grok pain-radar digests, Oct 27-28 2026 (Oct 27 8:41 AM ET through Oct 28 7:41 AM ET digests plus the Haitch editions). Verified live 2026-10-28: issue/PR/thread read; title and state confirmed.