title: Getting error on applying UDID as "Please enter a valid UDID"
body: <p>Even though I've entered a new valid <code>UDID</code> to my developer's account, I'm getting an error <code>"Please enter a valid UDID"</code> so I can't proceed from there. Here I've enclose the image.</p>
  
  <p><img src="https://i.stack.imgur.com/nh2Ls.png" alt="enter image description here"></p>