static inline int indexOfMonitor(const WindowsScreenDataList &screenData,
                                 const QString &monitorName) {
    for (int i = 0; i < screenData.size(); ++i)
        if (screenData.at(i).name == monitorName)
            return i;
    return -1;
}

/////

bool QWindowsScreenManager::handleScreenChanges()
{
    // Look for changed monitors, add new ones
    const WindowsScreenDataList newDataList = monitorData();
    const bool lockScreen = newDataList.size() == 1 && (newDataList.front().flags & QWindowsScreenData::LockScreen);
    bool primaryScreenChanged = false;
    for (const QWindowsScreenData &newData : newDataList) {
        const int existingIndex = indexOfMonitor(m_screens, newData.name);
        if (existingIndex != -1) {
            m_screens.at(existingIndex)->handleChanges(newData);
            if (existingIndex == 0)
                primaryScreenChanged = true;
        } else {
            auto *newScreen = new QWindowsScreen(newData);
            m_screens.push_back(newScreen);
            QWindowSystemInterface::handleScreenAdded(newScreen,
                                                             newData.flags & QWindowsScreenData::PrimaryScreen);
            qCDebug(lcQpaWindows) << "New Monitor: " << newData;
        }    // exists
    }        // for new screens.
    // Remove deleted ones but keep main monitors if we get only the
    // temporary lock screen to avoid window recreation (QTBUG-33062).
    if (!lockScreen) {
        for (int i = m_screens.size() - 1; i >= 0; --i) {
            if (indexOfMonitor(newDataList, m_screens.at(i)->data().name) == -1)
                removeScreen(i);
        }     // for existing screens
    }     // not lock screen
    if (primaryScreenChanged) {
        if (auto theme = QWindowsTheme::instance()) // QTBUG-85734/Wine
            theme->refreshFonts();
    }
    return true;
}

////

void QWindowsScreen::handleChanges(const QWindowsScreenData &newData) {
    m_data.physicalSizeMM = newData.physicalSizeMM;

    if (m_data.hMonitor != newData.hMonitor) {
        qCDebug(lcQpaWindows) << "Monitor" << m_data.name
            << "has had its hMonitor handle changed from"
            << m_data.hMonitor << "to" << newData.hMonitor;
        m_data.hMonitor = newData.hMonitor;
    }

    // QGuiApplicationPrivate::processScreenGeometryChange() checks and emits
    // DPI and orientation as well, so, assign new values and emit DPI first.
    const bool geometryChanged = m_data.geometry != newData.geometry
        || m_data.availableGeometry != newData.availableGeometry;
    const bool dpiChanged = !qFuzzyCompare(m_data.dpi.first, newData.dpi.first)
        || !qFuzzyCompare(m_data.dpi.second, newData.dpi.second);
    const bool orientationChanged = m_data.orientation != newData.orientation;
    m_data.dpi = newData.dpi;
    m_data.orientation = newData.orientation;
    m_data.geometry = newData.geometry;
    m_data.availableGeometry = newData.availableGeometry;

    if (dpiChanged) {
        QWindowSystemInterface::handleScreenLogicalDotsPerInchChange(screen(),
                                                                     newData.dpi.first,
                                                                     newData.dpi.second);
    }
    if (orientationChanged)
       QWindowSystemInterface::handleScreenOrientationChange(screen(), newData.orientation);
    if (geometryChanged) {
        QWindowSystemInterface::handleScreenGeometryChange(screen(),
                                                           newData.geometry, newData.availableGeometry);
    }
}

It seems like the first screen is overwritten with the data from the second screen. The indexOfMonitor method returns an incorrect index due to the screen name not being unique. How can this problem be solved?