Imported STEP files cannot stay linked to their source, so re-exporting a changed KiCad board means deleting the import and re-inserting it, losing whatever was attached to it.
From the Grok pain-radar digests, Nov 1-2 2026 (Nov 1 8:41 AM ET through Nov 2 7:41 AM ET digests plus the Haitch editions). Verified live 2026-11-02: issue/PR read; title and state confirmed.