-qreal float does not work on Aarch64

-qreal float works fine with X86, but on Aarch64 the QML engine complains "TypeError: Type error"

import QtQuick
import QtQuick.Controls

Window {
    visible: true
    Button {
         anchors.centerIn: parent
         text: "Hello world!"
    }
}

qrc:/qt-project.org/imports/QtQuick/Controls/Basic/Button.qml:26: TypeError: Type error
qrc:/qt-project.org/imports/QtQuick/Controls/Basic/Button.qml:17: TypeError: Type error
qrc:/qt-project.org/imports/QtQuick/Controls/Basic/Button.qml:13: TypeError: Type error
qrc:/qt-project.org/imports/QtQuick/Controls/Basic/Button.qml:11: TypeError: Type error