The affected part of my flow is shown below...

The flow works as expected in all regards, however when i send the following data from my endpoint via data exchange the given dates are still available to select in the date picker, and after selecting one of the dates (that should be unavailable) as per payload below and hitting confirm it still moves to the next screen.

DATA PAYLOAD

{
  version: '3.0',
  screen: 'SELECT_DATE',
  data: {
    minDate: '1719582806701',
    maxDate: '1727358805063',
    selectedService: 'QEyhIq',
    selectedStylist: 'flO',
    name: 'xxx',
    phone: '1123',
    waId: '1123',
    email: [...]',
    unavailableDates: [
      '1719619200000', '1719705600000',
      '1720224000000', '1720310400000',
      '1720828800000', '1720915200000',
      '1721433600000', '1721520000000',
      '1722038400000', '1722124800000',
      '1722643200000', '1722729600000',
      '1723248000000', '1723334400000',
      '1723852800000', '1723939200000',
      '1724457600000', '1724544000000',
      '1725062400000', '1725148800000',
      '1725667200000', '1725753600000',
      '1726272000000', '1726358400000',
      '1726876800000', '1726963200000'
    ]
  }
}

SCREEN FLOW JSON

    {
        "id": "SELECT_DATE",
        "title": "Select Date",
        "data": {
            "name": {
                "type": "string",
                "__example__": "steve"
            },
            "waId": {
                "type": "string",
                "__example__": "1123"
            },
            "phone": {
                "type": "string",
                "__example__": "1123"
            },
            "email": {
                "type": "string",
                "__example__": "[...]"
            },
            "minDate": {
                "type": "string",
                "__example__": "1704121049000"
            },         
              "maxDate": {
                "type": "string",
                "__example__": "1704121079000"
            },         
            "selectedService":  {
                "type": "string",
                "__example__": "1704121049000"
            },
            "selectedStylist":  {
                "type": "string",
                "__example__": "1704121049000"
            },
            "unavailableDates": {
                "type": "array",
                "items": {
                    "type": "string"                         
                },
                "__example__": [ "172307160000"]
              }

        },
        "layout": {
            "type": "SingleColumnLayout",
            "children": [
                {
                    "type": "Form",
                    "name": "date_form",
                    "children": [
                        {
                            "type": "DatePicker",
                            "name": "date",
                            "label": "Date",
                            "min-date": "${data.minDate}",
                            "max-date": "${data.maxDate}",
                            "unavailable-dates" : "${data.unavailableDates}",
                            "required": true                                
                        },
                        {
                            "type": "Footer",
                            "label": "Confirm Date",                                
                            "on-click-action": {
                                "name": "data_exchange",
                                "payload": {
                                    "selectedDate": "${form.date}",
                                    "name": "${data.name}",
                                    "phone": "${data.phone}",
                                    "email": "${data.email}",
                                    "waId": "${data.waId}",
                                    "selectedService": "${data.selectedService}",
                                    "selectedStylist": "${data.selectedStylist}"
                                }
                            }
                        }
                    ]
                }
            ]
        }
    },