Only some alpha characters display on label

When I try to populate a label the string "ABCDE" only the "A" and the "E" display on the screen. The other three characters are only outlined placeholders.

<label id="lblFoo" x="center" y="center" font="Graphics.FONT_NUMBER_HOT" justification="Graphics.TEXT_JUSTIFY_CENTER" />

var label = View.findDrawableById("lblFoo") as Text;
label.setText("ABCDE");