My story doesn't continue after validation of a for

After filling all the slots and finishing validation rasa keep selecting default fallback and doesn’t continue with the action I’ve written in the story. How should I solve this problem?

- story: interactive_story_1
  steps:
  - intent: attacker+incident
    entities:
      - location
      - date
      - attacker
      - incident
  - action: ask_response_form
  - active_loop: ask_response_form
  - slot_was_set:
    - requested_slot: attacker
    - requested_slot: location
    - requested_slot: date
    - requested_slot: incident
  - slot_was_set:
    - attacker
    - location
    - date
    - incident
  - slot_was_set:
    - requested_slot: null
  - active_loop: null
  - action: utter_start

@smc2315 try to delete the older trained model, train it again and run it. Only if you believe that your code is 100 % correct.

@smc2315 please share your rasa --version.