Qt 5.11 QMainWindow signal not seen by custom widget

[ad5xj]

UPDATED:

I have created a custom edit widget that is a promoted widget in the QMainWindow. The problem is that the custom edit widget is unable to connect to a created signal emitted by the app in QMainWindow.

mainwindow.h

class MainWindow : public QMainWindow
{
    Q_OBJECT
 
public:
    explicit MainWindow();
    ~MainWindow();
 
signals:
    void signalRowSelected(QVariant rowdata);
...
};

class MainWindow : public QMainWindow
{
    Q_OBJECT

public:
    explicit MainWindow();
    ~MainWindow();

signals:
    void signalRowSelected(QVariant rowdata);
...
};

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mainwindow.cpp

emit signalRowSelected(QVariant(vals));

emit signalRowSelected(QVariant(vals));

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editwidget.hpp

EditWidget:public QWdiget
{
...
private:
    QWidget *mw;
}

EditWidget:public QWdiget
{
...
private:
    QWidget *mw;
}

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editwidget.cpp

EditWidget::EditWidget()
    {
    ...
    mw = parent;
    connect(mw, SIGNAL(signalRowSelected(QVariant rowdata)), this, SLOT(slotDisplayRow(QVariant rowdata))); // (similar problem when only parent is used)
   }

EditWidget::EditWidget()
    {
    ...
    mw = parent;
    connect(mw, SIGNAL(signalRowSelected(QVariant rowdata)), this, SLOT(slotDisplayRow(QVariant rowdata))); // (similar problem when only parent is used)
   }

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As I mentioned before the editwidget is a promoted QWidget in the QMainwindow form so they are in the same GUI QThread.

The chages above now connects to QMainWindow but still does not know of the signal emitted.

What am I missing here?