Via MCP, a BOM entry covering two designators (Q1,Q4) for a MOSFET crashes the block diagram with Cannot read properties of undefined (reading 'pins'); connections and checks work, and splitting every multi-designator entry fixed a 30-part project. The layout looks parts up by BOM line, not designator.
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.