VSTools 3.3.1.1 moc problems

I just made the mistake of installing Qt VSTools 3.3.1.1 - bad move - now i get
4>D:\Github\DSS\DeepSkyStacker\GeneratedFiles\moc_lowerdockwidget.cpp(107,21): error C2039: 'setDSSClosing': is not a member of 'DSS::LowerDockWidget'
4>(compiling source file '/GeneratedFiles/moc_lowerdockwidget.cpp')
4> D:\Github\DSS\DeepSkyStacker\lowerdockwidget.h(43,8):
4> see declaration of 'DSS::LowerDockWidget'
15:49
Now I need to back level it again. to 3.2.0.47

Here's what's breaking it:

#include <QDockWidget>
#include "DSSCommon.h"

namespace DSS
{
    class LowerDockWidget : public QDockWidget
    {
        friend class StackingDlg;
        friend class ProcessingDlg;
        typedef QDockWidget
            Inherited;

        Q_OBJECT

    public:
        LowerDockWidget(QWidget* parent = nullptr);
        ~LowerDockWidget();

        inline int addWidget(QWidget* widget)
       

{             return stackedWidget->addWidget(widget);         }

    public slots:
        void setDockTitle(const QString& text);

        void panelChanged(ActivePanel panel);

#if QT_VERSION < 0x060601        // Shouldn't need this in QT 6.6.1
        inline void setDSSClosing() { dssClosing = true; }
#endif

    private:
        QLabel* dockTitle;
        QStackedWidget* stackedWidget;

#if QT_VERSION < 0x060601        // Shouldn't need this in QT 6.6.1
    protected:
        void closeEvent(QCloseEvent* event) override;

    private:
        bool dssClosing;
#endif

    };
}