TableView's RowHeightProvider issue

[LS-KS]

Hey,

I'm not sure if I fully understood the docs regarding the RowHeightProvider:
https://doc.qt.io/qt-6/qml-qtquick-tableview.html#rowHeightProvider-prop

In my PySide6 I'm Using A Table View for Eventlogging.
As long as the Text is short, everything is fine. but sometimes I have to display a warning with a little more text. In that case I can't figure out how to provide the correct rowHeight:

What I tried:

At first I tried to use the 'isRowLoaded' property like this:

isRowLoaded? -50 : -1 

because the docs said that if the value is negative, the height would be calculated on the content. But this doesn't work.

Somewhere in the Qt ecosystem I found a solution which is based on the row's children (can't find it anymore).
I changed it a bit to loop over all children to find out the max contentHeight. This doesn't have any effect:

TableView {
                id: eventLogView
                width: parent.width
                height: parent.height
                model: eventModel
                clip: true
                columnWidthProvider: function (column) {
                    if (column === 0) return 100
                    if (column === 1) return 150
                    if (column === 2) return eventLogView.width - 250
                }
                rowHeightProvider: function (row) {
                    if (isRowLoaded(row)) {
                        var item = loadedRow(row);
                        var contentHeight = 0;
                        for (var i = 0; i < item.children.length; i++) {
                            if (item.children[i].contentHeight > contentHeight) {
                                contentHeight = item.children[i].contentHeight;
                            }
                        }
                        return contentHeight + 10;
                    } else {
                        return -1;
                    }
                }
                delegate: DelegateChooser{
                    role: "column"
                    DelegateChoice {
                        roleValue: 0
                        EventDelegate {
                            displayText: model.text
                            isTime: true
                        }
                    }

                    DelegateChoice {
                        roleValue: 1
                        EventDelegate {
                            displayText: model.text
                            isSource: true
                        }
                    }

                    DelegateChoice {
                        roleValue: 2
                        EventDelegate {
                            displayText: model.text
                            isEvent: true
                        }
                    }
                }
            }

As long the text fits into two lines, everything is fine. But with more lines the result looks like this:

Can anybody explain what I'm missing?