Can it be that the text alignment of the ui.Label object has been changed: now default is"center".
The text is aligned in the centre when I use the label constructor with width and height.
ui.Label(win, "Age:", 10, 89, 90, 27)
If I use it without the width and height parameters, then it seems as if the alignment is to the left.
It is also possible that the escape character "\n" newline does not work.