title: UIActivityController share sheet is blank
body: <p>I referred to a lot of SO questions regarding this and most seem to be resolved because the OP was trying on simulator and not a real device. </p>
  
  <p>I've been trying on both, but all I see is the image below. I've used the same code with success earlier in a different project, so not sure what is going wrong. All options are missing and More is blank. This is on a real device where other apps' share sheet is working fine.</p>
  
  <p>Here's my code. I'm using Xcode 8.1(beta) and iOS 10.1(beta).</p>
  
  <pre><code>    let objectsToShare = ["My text", URL(string: "http://www.google.com") ] as [Any]
      let activityVC = UIActivityViewController(activityItems: objectsToShare, applicationActivities: nil)
      activityVC.excludedActivityTypes = [UIActivityType.addToReadingList, UIActivityType.postToVimeo, UIActivityType.print, UIActivityType.saveToCameraRoll]
  
      activityVC.popoverPresentationController?.sourceView = sender
      self.present(activityVC, animated: true, completion: nil)
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/8SKI7.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/8SKI7.png" alt="enter image description here"></a></p>