Notion change history: Notion MCP connections are having auth issues

New Claude-to-Notion MCP authorizations failed with “Invalid authorization request,” blocking new connections. Notion rated the incident major and reported failures starting approximately 01:25 UTC on August 5, 2026; the incident was logged at 2026-08-05 03:34 UTC and resolved at 2026-08-05 04:33 UTC (computed duration: 58 min).