Utter_default action is not getting triggered . Rasa core story

Rasa Open Source
8

Try this

config.yml

pipeline:
  - name: FallbackClassifier
    threshold: 0.4
    ambiguity_threshold: 0.1

policies:
  - name: MemoizationPolicy
  - name: RulePolicy
    core_fallback_threshold: 0.3
    core_fallback_action_name: "utter_default"
    enable_fallback_prediction: True
  - name: UnexpecTEDIntentPolicy
    max_history: 5
    epochs: 100
  - name: TEDPolicy
    max_history: 5
    epochs: 100
    constrain_similarities: true