title: Cannot acces libreoffice files although permissions are granted
body: <p>So I created a local shared folder for my computer (ubuntu 20.04) at the following location :
  <code>/home/sharedFolder</code></p>
  <p>I used the following commands :</p>
  <pre><code>sudo chgrp groupA /home/sharedFolder
  sudo chmod 777 /home/sharedFolder/
  </code></pre>
  <p>I do not care if everyone has access from this computer since is my personal computer at home so no security problems.</p>
  <p>Everything worked fine (*.pdf, *.md) till i tried using libreoffice files.</p>
  <p>When I try opening the file from a user that did not create it i get the following message :</p>
  <p><a href="https://i.stack.imgur.com/LhNzM.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/LhNzM.png" alt="Acces denied" /></a></p>
  <p>Both users have <code>groupA</code> as their main group and all files have groupA access : <code>read and write</code> or equivalent in CLI <code>-rwxrwxrwx</code></p>
  <p>Additional info, all this added to a nextcloud instance. I can open all the files from the web client.</p>
  <p>I do not know how to solve this, could not find any information anywhere...</p>