title: Markdown not visible in JupyterLab 1.1.4
body: <p>After trying to enable some JupyterLab extensions, I've been running into a problem. Markdown text is not visible after executing it (JupyterLab = 1.1.4/1.1.3).</p>
  
  <p>Here's the Markdown text before execution:
  <a href="https://i.stack.imgur.com/DZ4dp.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/DZ4dp.png" alt="enter image description here"></a></p>
  
  <p>And here's what I see after executing the above cells</p>
  
  <p><a href="https://i.stack.imgur.com/3t6DQ.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/3t6DQ.png" alt="enter image description here"></a></p>
  
  <p>Any idea what's causing this?</p>