Roles for model in header not showing

[dmendizabal]

I have a problem that only happens in Qt5.11 and up.
The same code works well in Qt5.9.

ListView {
    id: id_listView
    delegate: id_delegate
    header: id_header
    headerPositioning: ListView.OverlayHeader
    model: modelReport
    snapMode: ListView.SnapToItem
    clip: true

    Component {
        id: id_delegate
        ....
     }

    Component {
        id: id_header

            Row {
                id: id_row

                Repeater {
                    id: id_labelsHeader
                    model: modelHeader

                    Label {
                        text: role_c0
                    }
                }
           }
    }
}

modelReport is read correctly and the data is shown in the delegate id_delegate.
modelHeader shows nothing. The role role_c0 is empty
Both models are created in C++ as derivative from QStandardItemModel

What could be the difference between Qt5.9 and Qt5.11?