title: Android Studio Layout Preview disappeared
body: <p>For my <code>main_activity</code>, the layout preview disappeared after i was debugging.</p>
  
  <p>I have 2 other <code>layouts</code> in this Project, in which i can perfectly see the layout in the preview.</p>
  
  <p>Also the component tree says: <em>nothing to show</em><br>
  There is no rendering error showing up, below is xml</p>
  
  <p><a href="https://i.stack.imgur.com/6eIon.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/6eIon.png" alt="enter image description here"></a></p>
  
  <p>Thanks for your help!</p>
  
  <p>Greetings
  Michael</p>