title: UITextView with custom font not working when text set to "attributed"
body: <p>I have a <code>UITextView</code> with some text that came from a .rtf (pasted directly onto Xcode)</p>
  
  <p>The context contain only one custom font (Futura Book BT 11.0) </p>
  
  <p>If I set the "text(attributed)" property to "plain"= The custom font appear properly from the storyboard and from the app </p>
  
  <p>If I set the "text" property to "attributed"=. The custom font appear properly from the storyboard BUT not from the app. </p>
  
  <p>As my goal was to have a text with multiple font working, how to have the attributed property to work with custom fonts? (Swift)</p>
  
  <p>Thanks!</p>