The value of secondsFromStart is negative at the beginning of the conversation

{
          "role": "bot",
          "message": "Goodbye.",
          "secondsFromStart": -1.689,
          "duration": 480
        }

{
          "role": "bot",
          "message": "Goodbye.",
          "secondsFromStart": -1.689,
          "duration": 480
        }