TextField - blinking cursor can vanish for certain x values

This issue reproduces for me only on 1920x1080 @ 100%, on my default resolution of 4k@150% it works.

The following example shows the problem.

Window {
    visible: true
    height: 600
    width: 800
    Column{
        Repeater{
            model: 10
            TextField{
                x: 0.1 * index
                onXChanged: console.log( index + ": x = " + x )
            }
        }
    }
}

Textfield 1-5 and 7-10 are ok. If you click into them the cursor is visible.
Textfield 6 has no cursor if it has focus.

I do not try to pick dumb values that break my program, but this happened "natural" with TextField´s inside of a Grid in a Dialog.
The Dialog was positioned centered on the screen and because of that I think it ended up on "x = *.5" .

Might have something to do with: https://bugreports.qt.io/browse/QTBUG-77663 ?