Render failed

When a job enters the failed state, open the job detail page and look at error.code:

• PROVIDER_UNAVAILABLE — provider is down or rate-limited. Retry later.
• INVALID_INPUT — dimensions below the provider's minimum (Seedream needs ≥ 3,686,400 pixels). Bump resolution.
• NO_PROVIDER — no registered provider covers this job_type × model. Usually means Volcengine API key isn't configured.
• MODERATION_BLOCKED — prompt or output hit safety filters. Rephrase.
• PROVIDER_TIMEOUT — async task didn't finish in 10 minutes. File a support ticket with the job id.

Credits are refunded automatically on any failure path, even if the error happens after the provider has started work.