JLCPCB's quote page would not read board size or layer count from the mainboard zip and showed no preview, even though an independent parser found every layer and the outline.
From the Grok pain-radar digests, Oct 26-27 2026 (Oct 26 12:41 PM ET through Oct 27 7:41 AM ET digests plus the Haitch editions). Verified live 2026-10-27: issue/PR/thread read; title and state confirmed.