Error calling C++ function from QML

Not quite sure where my error is. I wanted to share an enum and class to Qt...I read that qmlRegisterUncreatableMetaObject does not import properly and experienced that issue myself so the below is what I came up with by I'm receiving an error:

qrc:/Pages/AddCustomFields.qml:288: Error: Unknown method parameter type: OpsMode::ModeCRF

Any insight appreciated!

Thanks,
-Rich

---------------8<--------------------------------------------
Header:

Code:

class OpsMode : public QObject {
    Q_OBJECT
 
public:
    enum ModeCRF : int {ModeIdle = 0, ModeActiveRun, ModeWarming, ModeRemote};
    Q_ENUM(ModeCRF)
};
 
class OperationMode : public QObject
{
    Q_OBJECT
 
public:
    explicit OperationMode(QObject *parent = nullptr);
    ~OperationMode();
 
    Q_INVOKABLE OpsMode::ModeCRF getCRFMode();
    Q_INVOKABLE void setCRFMode(OpsMode::ModeCRF md);
 
private:
    OpsMode::ModeCRF CRFMode;
    QMutex mutexMode;
};

C++:

Code:

void OperationMode::setCRFMode(OpsMode::ModeCRF md)
{
    qDebug() << "Set CRF mode!" << md;
    QMutexLocker locker(&mutexMode);
    CRFMode = md;
}
 
OpsMode::ModeCRF OperationMode::getCRFMode()
{
    qDebug() << "Get CRF mode!";
    //QMutexLocker locker(&mutexMode);
    //return CRFMode;
}

Example QML:

Code:

import MyOperationsMode 1.0
import MyOpsMode 1.0
 
CustomOperationsMode {
    id: operationsMode
}
 
operationsMode.setCRFMode(CustomOpsMode.ModeIdle)

Main (registering)

Code:

OpMode = new OperationMode();
    qmlRegisterType<OperationMode>("MyOperationsMode", 1, 0, "CustomOperationsMode");
    qmlRegisterUncreatableType<OpsMode>("MyOpsMode", 1, 0, "CustomOpsMode", "ERROR!");

Added after 17 minutes:

Thinking this may be related: https://bugreports.qt.io/browse/QTBUG-19741