Files get re-uploaded with second desktop client

Nextcloud version : 24.0.6
Operating system and version : debian 10
Apache or nginx version (eg, Apache 2.4.25): Apache 2.4.54
PHP version (eg, 7.4): 8.0
Desktop client: 3.6
I’m using the official docker-apache image

The issue you are facing:

I have 2 pc’s where I have the desktop client installed, one of which is an old laptop which I’m barely using. When I’m syncing with my old laptop, he often re-uploads files which were already deleted or moved to another folder of my nextcloud instance. It’s acting as if they are new files.
To illustrate the issue, consider this situation:

  • Folder 1
    – File A
    – File B
    – File C
    – File D

This folder is synced to both laptops. Then I’m doing some file operations on my new laptop which leads to the following situation:

  • Folder 1
    – File B
    – File D

  • Folder 2
    –File A

File C has been deleted.

The files have been synced from my new laptop to my Nextcloud. When I’m powering on my old laptop after some weeks, the client thinks that File A & C are new and get re-uploaded. This leads to the following situation:

  • Folder 1
    – File A
    – File B
    – File C
    – File D

-Folder 2
–File A

So obviously, this leads to a lot of duplicate files and files that are no longer needed. I’m not sure if it has something to do with the fact that I barely use my old laptop. If I find the time I test it with another laptop to see if it’s the same behavior.

Is this the first time you’ve seen this error? (Y/N):No

The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):

<?php
$CONFIG = array (
  'htaccess.RewriteBase' => '/',
  'memcache.local' => '\\OC\\Memcache\\APCu',
  'apps_paths' => 
  array (
    0 => 
    array (
      'path' => '/var/www/html/apps',
      'url' => '/apps',
      'writable' => false,
    ),
    1 => 
    array (
      'path' => '/var/www/html/custom_apps',
      'url' => '/custom_apps',
      'writable' => true,
    ),
  ),
  'memcache.distributed' => '\\OC\\Memcache\\Redis',
  'memcache.locking' => '\\OC\\Memcache\\Redis',
  'redis' => 
  array (
    'host' => 'nextcloud-redis',
    'password' => '<PASSWORD>',
    'port' => 6379,
  ),
  'passwordsalt' => '<PASSWORD>',
  'secret' => '<PASSWORD>',
  'trusted_domains' => 
  array (
    0 => 'localhost',
    1 => 'mycloud.com',

  ),
  'datadirectory' => '/srv/Nextcloud-data',
  'dbtype' => 'mysql',
  'version' => '24.0.6.1',
  'overwrite.cli.url' => 'https://mycloud.com',
  'dbname' => 'nextcloud_db',
  'dbhost' => 'db',
  'dbport' => '',
  'dbtableprefix' => 'oc_',
  'mysql.utf8mb4' => true,
  'dbuser' => 'nextcloud_user',
  'dbpassword' => '<PASSWORD>',
  'installed' => true,
  'instanceid' => '<ID>',
  'trusted_proxies' => 
  array (
    1 => '127.0.0.1',
  ),
  'overwritehost' => 'mycloud.com',
  'overwriteprotocol' => 'https',
  'default_phone_region' => 'BE',
  'loglevel' => 4,
  'maintenance' => false,
  'enable_previews' => true,
  'enabledPreviewProviders' => 
  array (
    0 => 'OC\\Preview\\PNG',
    1 => 'OC\\Preview\\JPEG',
    2 => 'OC\\Preview\\GIF',
    3 => 'OC\\Preview\\BMP',
    4 => 'OC\\Preview\\XBitmap',
    5 => 'OC\\Preview\\MP3',
    6 => 'OC\\Preview\\TXT',
    7 => 'OC\\Preview\\MarkDown',
    8 => 'OC\\Preview\\OpenDocument',
    9 => 'OC\\Preview\\Krita',
    10 => 'OC\\Preview\\Movie',
    11 => 'OC\\Preview\\PNG',
    12 => 'OC\\Preview\\MP4',
    13 => 'OC\\Preview\\PDF',
  ),
  'remember_login_cookie_lifetime' => 1296000,
  'session_lifetime' => 86400,
  'theme' => '',
  'mail_smtpmode' => 'smtp',
  'mail_smtphost' => '172.17.0.1',
  'mail_sendmailmode' => 'smtp',
  'mail_smtpport' => '25',
  'has_rebuilt_cache' => true,
  'app_install_overwrite' => 
  array (
    0 => 'radio',
    1 => 'dicomviewer',
  ),
);

If any other information is needed to solve this problem , please let me know.