How to remove an image from a window?

[computerwizoo7]

I am making a simple map system where the player opens a window which shows the player a picture of a world map for the game, however when i dispose of the window the image won't go away, it waits until rmxp clears it from the screen.

how can i fix this to dispose of the window of soon as the window is disposed of?

here is the script:

Code:

class Window_Map < Window_Base
  def initialize
    super(0,0,640,480)
    self.contents = Bitmap.new(width-32,height-32)
    self.contents.font.name = "Arial"
    self.contents.font.size = 24
    refresh
  end
    
  def refresh
    self.contents.clear
    @Map_Image = Sprite.new
    @Map_Image.bitmap = RPG::Cache.picture("Map_Color.png")
    @Map_Image.z = 100
  end
end

Code:

class Map_Scene
  
  def main
    @Map = Window_Map.new
    
    Graphics.transition
    loop do
      Graphics.update
      Input.update
      update
      if $scene != self
        then break
      end
    end
    
    Graphics.freeze
    @Map.dispose
    
  end
  
  def update
    
    @Map.update
    if Input.trigger?(Input::B)
      $game_system.se_play($data_system.cancel_se)
      $scene = Scene_Map.new
    end
  end
  
end