Cartesia has restored service, and conversations configured to use Cartesia for TTS are starting successfully again.

We are working with Cartesia to restore service

We have identified the issue. An outage affecting our upstream TTS provider, Cartesia, is causing some conversations using Cartesia as the default TTS to fail to start. Only conversations configured to use Cartesia for TTS are affected. Cartesia is working on resolving this issue, and we're continuing to monitor. https://status.cartesia.ai/incidents/01KYQZ97RPSZBJRPEQGVGJANZP

We are currently investigating the issue