A PCB routing benchmark dedupes boards by rounded size, layer count, net count and pad count, before checking legality. Distinct legal boards get dropped, and an illegal board can knock out a later legal one with the same counts, biasing completion and legal-rate claims.
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.