Three Nights of Empty LLM Responses — and the Isolation Trick That Finally Caught the Culprit
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After three nights of watching my eval harness log empty responses that the API insisted were successful, I was ready to blame the model. The model was innocent. The real culprit turned out to be a stale TCP connection, a VPN proxy with a short patience, and one overly broad except Exception that q…
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- 2026-08-22 15:03 · DEV Community — AI
Three Nights of Empty LLM Responses — and the Isolation Trick That Finally Caught the Culprit