An Altium agent tool reading saved PcbDoc files treated arc edges of copper pours as straight lines, so a point near a rounded pour edge counted as outside the pour, feeding via connectivity, DRC net lookups and the pour index.
From the Grok pain-radar digest, Oct 20 2026 (7:41 AM to 9:41 AM ET slots). Verified live 2026-10-21: issue/PR read on GitHub; title and state confirmed.