Error code when handling fulfilment response

[Fredrik S]

Hi!

I have suddenly started to get this error message every time my dialogflow agent receives a response from the fulfilment server:

{
  "error": {
    "code": 400,
    "message": "While calling Cloud Text-To-Speech API: INVALID_ARGUMENT:  [type.googleapis.com/util.ErrorSpacePayload='SpeechErrorSpace::S3_REQUESTED_TTS_BACKEND_NOT_FOUND']",
    "status": "INVALID_ARGUMENT"
  }
}

The server runs on App Engine and hasn't been redeployed for a long time, and from what I can tell there is no issue on that side.

All help is appreciated :)

// FredrikS

[Mohammad I (Cloud Platform Support)]

I have tried to investigate the issue and internally have noticed that there are number of internal issues with the error message "While calling Cloud Text-To-Speech API: INVALID_ARGUMENT:  [type.googleapis.com/util.ErrorSpacePayload='SpeechErrorSpace::S3_REQUESTED_TTS_BACKEND_NOT_FOUND']" that you have indicated. 

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