Can please someone help me to understand and solve this issue ?

import QtQuick 2.12
import QtQuick.Window 2.12
import QtQuick.Controls 2.12
import QtQuick.Layouts 1.12

Window {
    visible: true
    width: 640
    height: 480
    title: qsTr("Hello World")
    MouseArea{
        anchors.fill: parent
        onClicked: {
            console.log("main area clicked")
        }
    }
    Rectangle{  // click this rectangle will output "main area clicked"
        anchors.centerIn: parent
        height: parent.height *0.8
        width: parent.width *0.8
        color : "orange"
        RowLayout{
            anchors.fill: parent
            spacing: 30
            Button{
                Layout.fillHeight: true
                Layout.fillWidth: true
                text: "clickme"
                onClicked: {
                    console.log("btn 1 click")
                }
            }
            Button{ // click this disabled Button will output "main area clicked"
                Layout.fillHeight: true
                Layout.fillWidth: true
                text: "clickme"
                enabled: false
                onClicked: {
                    console.log("btn 2 click")
                }
            }
        }
    }
}