Rasa core run utter_default，but i look track intent is not default

Rasa Open Source
1

i dont understand，why rasa core run utter_default，but i look track intent is not default

this is my track ，can see inent is fid729 , but rasa core run utter_default !!! why??

 {
            "event": "user",
            "input_channel": null,
            "parse_data": {
                "entities": [],
                "intent": {
                    "confidence": 0.8940007090568542,
                    "name": "fid729"
                },
                "intent_ranking": [
                    {
                        "confidence": 0.8940007090568542,
                        "name": "fid729"
                    },
                    {
                        "confidence": 0.8618343472480774,
                        "name": "fid706"
                    },
                    {
                        "confidence": 0.4573024809360504,
                        "name": "fid832"
                    },
                    {
                        "confidence": 0.4319189190864563,
                        "name": "fid505"
                    },
                    {
                        "confidence": 0.41810470819473267,
                        "name": "fid684"
                    },
                    {
                        "confidence": 0.40641552209854126,
                        "name": "fid732"
                    },
                    {
                        "confidence": 0.38689422607421875,
                        "name": "fid691"
                    },
                    {
                        "confidence": 0.38183096051216125,
                        "name": "fid823"
                    },
                    {
                        "confidence": 0.3739817142486572,
                        "name": "fid625"
                    },
                    {
                        "confidence": 0.36410021781921387,
                        "name": "fid784"
                    }
                ],
                "text": "Thank you for your help"
            },
            "text": "Thank you for your help",
            "timestamp": 1554952814.9330657
        },
        {
            "event": "action",
            "name": "utter_default",
            "timestamp": 1554952814.954067
        },
        {
            "data": {
                "attachment": null,
                "buttons": null,
                "elements": null
            },
            "event": "bot",
            "text": "checking",
            "timestamp": 1554952814.954067
        }

this is my rasa core stories …

story_fid728

  • fid728
  • utter_fid728

story_fid729

  • fid729
  • utter_fid729

story_fid730

  • fid730
  • utter_fid730

story_fid731

  • fid731
  • utter_fid731 …
2

look like add train cmd --history 1 can solve this~~ XD