title: iOS: Background capability not working (Terminated due to signal 9.)
body: <p>I am working on a project which includes following functionalities.</p>
  <ol>
  <li>Location fetch and send to server in every 60 seconds.</li>
  <li>Audio/Video Calls.</li>
  </ol>
  <p>The background modes which are set for the project are mentioned as under
  <a href="https://i.stack.imgur.com/76dvA.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/76dvA.png" alt="enter image description here" /></a></p>
  <p>iOS: 14.1
  Xcode: 12.1
  Swift: 4</p>
  <p>Problem:
  Whenever I put the app in background it fetches location or call for sometime then I get following error in logs. Whenever I put the app in background when audio call is going on then audio works for some time and after few seconds following error arise.</p>
  <pre><code>Message from debugger: Terminated due to signal 9.
  </code></pre>
  <p>How ever all things work fine when the application is in foreground. Application fetches location and call works.</p>
  <p>Kindly suggest what additional I have to do or anything wrong am I doing.</p>