title: ConstraintLayout views in top left corner
body: <p>Every time I create views like <code>Button</code> and <code>TextView</code> in <code>ConstraintLayout</code>, they all get stuck at the top corner instead of where I placed them.</p>
  
  <p>I tried to create new activities and change the emulator, but the result is still the same.</p>
  
  <p>This is a screenshot of what's happening:</p>
  
  <p><a href="https://i.stack.imgur.com/Ft5rj.png" rel="noreferrer"><img src="https://i.stack.imgur.com/Ft5rj.png" alt="enter image description here"></a></p>
  
  <p>What may be the issue?</p>