Snowflake change history: INC20000046

Snowflake reported a major outage in AWS - Europe (London), preventing Snowpark Container Services access and intermittently blocking Snowsight sign-ins with HTTP 500 errors. The stated impact began at 22:38 UTC June 22, 2026; recorded duration was 1 h 29 min, with resolution at 2026-06-23 02:35 UTC after reverting a recent configuration change.