//This is no problem
    Button {
        anchors.centerIn: parent
        text: "Button PUSH"
        onClicked: {
            openDetail(0);
        }
    }

    //After push, and then use the system return key to return, the MouseArea will not respond
    MouseArea {
        width: parent.width
        height: 100
        focus: true
        Rectangle {
            anchors.fill: parent
            color: "black"
            Text {
                anchors.fill: parent
                text: "MouseArea PUSH - problematic"
                color:"white"
                horizontalAlignment: Text.AlignHCenter
                verticalAlignment: Text.AlignVCenter
            }
        }
        onClicked: {
            openDetail(1);
        }
    }
    function openDetail(i) {
        stack.push(com_detail);
    }

Demo:
https://github.com/senlinmuvs/TestQtAndroid