title: What causes visual glitches with Xcode 9's iOS Simulator and how can I fix them?
body: <p>When running applications on the simulator with Xcode 9, I regularly experience a handful of visual glitches, which include <strong>red device identifier labels</strong> and content that <strong>duplicates itself</strong> and <strong>leaves pixel mess after it moves</strong>. I did not have these issues with Xcode 8.</p>
  
  <p><a href="https://i.stack.imgur.com/NFneI.png" rel="noreferrer"><img src="https://i.stack.imgur.com/NFneIm.png" alt="red device identifier label"></a></p>
  
  <p><a href="https://i.stack.imgur.com/2Cc3R.png" rel="noreferrer"><img src="https://i.stack.imgur.com/2Cc3R.png" alt="messy content"></a></p>
  
  <p>These occur regardless of the OS of the simulator, I replicated the issue with iOS 11 and 10.</p>
  
  <p>This might be unrelated, but I use a legacy version of iClipboard (6.0.0) and a similar glitch persists inside the search bar sometimes.</p>
  
  <p><a href="https://i.stack.imgur.com/vePXs.png" rel="noreferrer"><img src="https://i.stack.imgur.com/vePXs.png" alt="iClipboard - glitch in search bar"></a></p>
  
  <p>What causes these glitches and what can I do to fix them?</p>