FXRuby FXText styled text doesn't working, and crash when you ask for #getStyle().

FXRuby FXText syled text bug.rb

#encoding: utf-8

require 'fox16'
include Fox


class HelloWindow < FXMainWindow
  def initialize(app)
    ventana = super(app, "Hello, World!", width: 600, height: 400)
		MiFXText.new(ventana)
  end
  
  def create
    super
    show(PLACEMENT_SCREEN)
  end
end

######################################################################################

class MiFXText < FXText

	def initialize(widget_padre)
		super(widget_padre, opts: TEXT_READONLY|TEXT_WORDWRAP|TEXT_AUTOINDENT|LAYOUT_FILL|LAYOUT_FIX_WIDTH, width: 550)
		#styled=(true)
		appendStyledText('Observaciones: ', FXText::STYLE_UNDERLINE, true)
		insertStyledText(4, 'LALA', FXText::STYLE_BOLD)
		appendText('The text widget supports editing of multiple lines of text. An optional style table can provide text coloring based on the contents of an optional parallel style buffer, which is maintained as text is edited. In a typical scenario, the contents of the style buffer is either directly written when the text is added to the widget, or is continually modified by editing the text via syntax-based highlighting engine which colors the text based on syntactical patterns.')
		changeStyle(0, 5, FXText::STYLE_UNDERLINE)
		#p styled?
		p getStyle(54) #HERE! EVERYTHING CRASH!, the other comments are for seeing purpose, make it code and you will see what happen
		#p textStyle
		#p FXText::STYLE_UNDERLINE
		#p FXText::STYLE_BOLD
		#textStyle=(4)
		#p textStyle
		#styled=(true)
	end
end

######################################################################################

if __FILE__ == $0
  FXApp.new do |app|
		HelloWindow.new(app)
    app.create
    app.run
  end
end