At this this reproduction you need to scroll hard to see that movement cancels. In my app this happens constantly, no matter how big page is

import QtQuick 2.15
import QtQuick.Controls 2.15
import QtQuick.Window 2.15

Window {
    width: 640
    height: 480
    visible: true
    title: qsTr("Hello World")

    Popup {
        id: pop

        anchors.centerIn: parent
        width: parent.width
        height: parent.height

        SwipeView {
            anchors.fill: parent

            Repeater {
                model: 6
                Loader {
                    active: SwipeView.isCurrentItem || SwipeView.isNextItem
                            || SwipeView.isPreviousItem
                    sourceComponent: Flickable {
                        id: flick

                        contentHeight: rec.height

                        Rectangle {
                            id: rec
                            width: parent.width
                            height: 600

                            color: index % 2 ? "#00ff00" : "#ff4500"
                        }
                        ScrollBar.vertical: ScrollBar {}
                    }
                }
            }
        }
    }

    Component.onCompleted: pop.open()
}

Am I doing something wrong?