title: UIBarButtonItem Image is not shown and instead a white rectangle in the size of image is shown, Why?
body: <p>With whatever image I try to intialize the UIBarButtonItem, its just showing a white background in the size of the image. Even when I tired in interface builder, the result is the same. All these images when used with other objects works perfectly. </p>
  
  <p>How can I solve this??</p>