# TTS language region validation fails requests

- Provider: [Cartesia](https://down.guide/cartesia)
- Level: confirmed
- Impact: Degraded
- lasted 1h 37m
- started 2026-08-14 07:58 UTC
- apac
- id: DWN-cae0ddb93a
- Official page: https://status.cartesia.ai/incidents/01KZZMF21NQ17QKCBQQ2V7CDTF

## Updates from Cartesia
### 2026-08-14 07:58 UTC: identified
A change rejects unknown TTS language regions, e.g. \`hi-in\` is rejected since an ISO 3166-1 alpha-2 country code is expected. We are working on rolling back this change. To correct the issue immediately, avoid sending the country code or send a corrected country code such as \`hi-IN\`.

### 2026-08-14 08:07 UTC: identified
The change has been rollbacked in APAC.

### 2026-08-14 09:31 UTC: monitoring
We have mitigated the issue on our end and are continuing to monitor the state of our service.

### 2026-08-14 09:34 UTC: resolved
This incident has been resolved.

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