title: suspended process won't restart Mac
body: <p>I suspended a process using <code>ctr+z</code> and got this feedback : </p>
  
  <blockquote>
    <p>[1]  + 16451 suspended  python3 blabla</p>
  </blockquote>
  
  <p>Now I want to continue and bring it back to the foreground <strong>but</strong>:</p>
  
  <ul>
  <li><code>fg 16451</code> says <code>fg: job not found: 16451</code></li>
  <li><code>kill -CONT 16451</code> does not seem to be doing anything</li>
  </ul>
  
  <p>I don't know what else to try, any help is welcome </p>