Runway change history: Issues with Seedance 2.0 generations

Runway reported a major incident affecting Seedance 2.0 generations across App, Backend, and Public API, with increased generation failures. It started at 2026-04-22 20:41 UTC and was marked resolved at 2026-04-22 22:23 UTC, lasting 1 h 41 min. Runway escalated to a third party; no cause or fix was stated.