Last slot returned from Form return None value although it's filled

[lupasten (luis pasten)]

Definition of slots:

slots:
  queso:
    type: text
    auto_fill: false
  peperoni:
    type: text
    auto_fill: false
  salame:
    type: text
    auto_fill: false
  choclo:
    type: text
    auto_fill: false
  pollo:
    type: text
    auto_fill: false
  tocino: 
    type: text
    auto_fill: false
  champinon: 
    type: text
    auto_fill: false
  requested_slot:
    type: unfeaturized

Utter templates:

templates:
  utter_greet:
  - text: "Hola, bienvenido"

  utter_ask_queso:
  - text: "Desea queso en su pizza?"

  utter_ask_peperoni:
  - text: "Desea peperoni en su pizza?"

  utter_ask_salame:
  - text: "Desea salame en su pizza?"

  utter_ask_choclo:
  - text: "Desea choclo en su pizza?"

  utter_ask_pollo:
  - text: "Desea pollo en su pizza?"

  utter_ask_tocino:
  - text: "Desea tocino en su pizza?"

  utter_ask_champinon:
  - text: "Desea champiñon en su pizza?"

  utter_wrong_option:
  - text: "Debe ingresar si desea o no desea el ingrediente, intentelo nuevamente"

  utter_como_puedo_ayudarte:
  - text: "¿Como puedo ayudarte?"

  utter_slots:
  - text: "La pizza será preparada con los siguientes ingredientes: \n
          Queso: {queso}\n
          Peperoni: {peperoni}\n
          Salame: {salame}\n
          Choclo: {choclo}\n
          Pollo: {pollo} \n
          Tocino: {tocino} \n
          Champinon: {champinon} \n
          Confirma el pedido? "

  utter_estoy_en_ello:
  - text: Estamos preparando tu pizza, tu pizza estará lista en 80 min y será enviada por rappi ;)
  utter_ingrediente_extra:
  - text: Deseas agregar algún otro ingrediente?

Validation of Slots:

         def validate_queso(
                 self,
                 value: Text,
                 dispatcher: CollectingDispatcher,
                 tracker: Tracker,
                 domain: Dict[Text, Any],
             ) -> Dict[Text, Any]:
                 if value.lower() == "si":
                     print("hola")
                     return {"queso": value}
                 elif value.lower() == "no":
                     return {"queso": value}
                 else:
                     dispatcher.utter_message(template="utter_wrong_option")
                     return{"queso": None}     

    def validate_peperoni(
        self,
        value: Text,
        dispatcher: CollectingDispatcher,
        tracker: Tracker,
        domain: Dict[Text, Any],
    ) -> Dict[Text, Any]:
        if value.lower() == "si":
            return {"peperoni": value}
        elif value.lower() == "no":
            return {"peperoni": value}
        else:
            dispatcher.utter_message(template="utter_wrong_option")
            return{"peperoni": None}     

    def validate_salame(
        self,
        value: Text,
        dispatcher: CollectingDispatcher,
        tracker: Tracker,
        domain: Dict[Text, Any],
    ) -> Dict[Text, Any]:
        if value.lower() == "si":
            return {"salame": value}
        elif value.lower() == "no":
            return {"salame": value}
        else:
            dispatcher.utter_message(template="utter_wrong_option")
            return{"salame": None} 

    def validate_choclo(
        self,
        value: Text,
        dispatcher: CollectingDispatcher,
        tracker: Tracker,
        domain: Dict[Text, Any],
    ) -> Dict[Text, Any]:
        if value.lower() == "si":
            return {"choclo": value}
        elif value.lower() == "no":
            return {"choclo": value}
        else:
            dispatcher.utter_message(template="utter_wrong_option")
            return{"choclo": None} 

    def validate_pollo(
        self,
        value: Text,
        dispatcher: CollectingDispatcher,
        tracker: Tracker,
        domain: Dict[Text, Any],
    ) -> Dict[Text, Any]:
        if value.lower() == "si":
            return {"pollo": value}
        elif value.lower() == "no":
            return {"pollo": value}
        else:
            dispatcher.utter_message(template="utter_wrong_option")
            return{"pollo": None} 

    def validate_tocino(
        self,
        value: Text,
        dispatcher: CollectingDispatcher,
        tracker: Tracker,
        domain: Dict[Text, Any],
    ) -> Dict[Text, Any]:
        if value.lower() == "si":
            return {"tocino": value}
        elif value.lower() == "no":
            return {"tocino": value}
        else:
            dispatcher.utter_message(template="utter_wrong_option")
            return{"tocino": "None"} 

    def validate_champinon(
        self,
        value: Text,
        dispatcher: CollectingDispatcher,
        tracker: Tracker,
        domain: Dict[Text, Any],
    ) -> Dict[Text, Any]:
        if value.lower() == "si":
            return {"champinon": value}
        elif value.lower() == "no":
            return {"champinon": value}
        else:
            dispatcher.utter_message(template="utter_wrong_option")
            return{"champinon": None}

Submit Function

def submit(
        self,
        dispatcher: CollectingDispatcher,
        tracker: Tracker,
        domain: Dict[Text, Any],
    ) -> List[Dict]:
        print("****************SUBMITE*****************")
        dispatcher.utter_message(template="utter_slots")
        return[]

here is when the bot start to ask if the customer wants a specific ingridient and he need to answer with “si” or “no” (yes or no)

When running rasa at debug form show that all the slots are filled but when i show it by utter template, always the last slot filled shows “None” value. This isn’t becouse the validate function, i tried changing the value of else condition for another thing diferent like “JAJA” and shows anyway “None”.

Thanks for helping me