ADDITIONAL SYSTEM INFORMATION :
Mac OS X El Capitan / jdk-11-ea+13 x64

A DESCRIPTION OF THE PROBLEM :
If ColumnPrefProperty is bound to the length of the TextProperty, problems occur when a monospaced font is used. The text is placed outside of the view and only becomes visible after double-clicking the TextField or moving the cursor to the left.


---------- BEGIN SOURCE ----------
This is a minimal example that reproduces this behavior.

public class Main extends Application {

    @Override
    public void start(Stage primaryStage) throws Exception{
        Stage stage = new Stage();
final TextField a = new TextField();
a.prefColumnCountProperty().bind(a.textProperty().length());
a.setStyle("-fx-font-family: 'monospaced';");
        VBox box = new VBox(0);
        box.setMinWidth(0);
        box.setFillWidth(false);
        box.getChildren().addAll(a);
        stage.setScene(new Scene(box, 200, 200));
        stage.show();
    }


    public static void main(String[] args) {
        launch(args);
    }
}
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
A simple fix is to use a.prefColumnCountProperty().bind(a.textProperty().length().add(1)) instead of a.prefColumnCountProperty().bind(a.textProperty().length());.

FREQUENCY : always