Not working for Response API endpoint

[aji-pramono-65]

      Proxying to https://daae-eus.openai.azure.com/openai/responses?api-version=2025-03-01-preview HTTP/2 RequestVersionOrLower 
info: Yarp.ReverseProxy.Forwarder.HttpForwarder[56]
      Received HTTP/2.0 response 500.
info: Yarp.ReverseProxy.Health.DestinationHealthUpdater[20]
      Passive health state of the destination `BACKEND_1` is reset to 'Unknown`.
info: Yarp.ReverseProxy.Forwarder.HttpForwarder[9]
      Proxying to https://daae-eus.openai.azure.com/openai/deployments/gpt-4o-mini/chat/completions?api-version=2025-03-01-preview HTTP/2 RequestVersionOrLower 
info: Yarp.ReverseProxy.Forwarder.HttpForwarder[56]
      Received HTTP/2.0 response 200.
info: Yarp.ReverseProxy.Forwarder.HttpForwarder[9]
      Proxying to https://daae-eus.openai.azure.com/openai/deployments/gpt-4o-mini/chat/completions?api-version=2025-03-01-preview HTTP/2 RequestVersionOrLower 
info: Yarp.ReverseProxy.Forwarder.HttpForwarder[56]
      Received HTTP/2.0 response 200.

When it proxying to /openai/responses it always receive HTTP 500 error. If I hit directly to those endpoint, it never fails.