Confirmed real (not isolated to my since-guess): Admin 00 independently hit the identical false-fail last night, documented as K380. Root cause: the sys_db sessions INSERT in CLOSE.php stored $since RAW (whatever human format arrived, e.g. 08/18/26 5:02pm PT), while close_verify's own SELECT (called immediately after, same request) compared opened_at against normalize_since_pt($since) -- a normalized Y-m-d H:i:s format. SQLite does plain string comparison, no date coercion (same class of bug the file's own K-VERIFY-01 comment already warned about) -- 08/18/26... sorts before 2026-08-18... as a string, so opened_at >= since_norm was false on literally every close. Fixed by normalizing $since before storing it, so stored and queried values use the same format.