library_id, row_id, and library_version are never written to .snxsch and reset on load, so the app marks the sheet dirty, the next save drops them, and the updates scan reports drift again on every open.
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.