CIFS mount changes not updateing

I am currently trying to work with a CIFS mount using occ files_external:notify. The process runs and with -v, changes are reported. However, they are not propagated to the interface or sync client, despite cron updates running.

Nextcloud version (eg, 20.0.5): 25.0.1
Operating system and version (eg, Ubuntu 20.04): Ubuntu 22.04
Apache or nginx version (eg, Apache 2.4.25): 2.4.52-1ubuntu4.2
PHP version (eg, 7.4): 8.1+92ubuntu1 (fpm)

Is this the first time you’ve seen this error?: N

Steps to replicate it:

  1. Create a file on CIFS drive
    touch [local CIFS mount]/users/voit/sketch/test23
  1. Check that files_external:notify picked it up:
Nov 29 10:26:08 [myserver] php[10597]: modified /users/voit/sketch/test23
Nov 29 10:26:08 [myserver] [10597]:   marking 'users/voit/sketch' as outdated for voit
  1. Wait until cron job ran (confirm by Admin interface)
  2. Navigate to folder in web interface: test23 is not shown
  3. Reload folder in web interface: test23 is shown (this also seems to find new files if files_external:notify is not running).

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

<?php
$CONFIG = array (
  'passwordsalt' => '...',
  'secret' => '...',
  'trusted_domains' => 
  array (
    0 => 'localhost',
    1 => '...',
  ),
  'trusted_proxies' => 
  array (
    0 => '10.90.60.147',
  ),
  'overwritehost' => 'cloud.bbo.caesar.de',
  'overwriteprotocol' => 'https',
  'overwritewebroot' => '/',
  'overwritecondaddr' => '^10\\.90\\.60\\.147$',
  'default_phone_region' => 'DE',
  'datadirectory' => '/cloud/nextcloud/data',
  'dbtype' => 'mysql',
  'version' => '25.0.1.1',
  'overwrite.cli.url' => '...',
  'dbname' => 'nextcloud',
  'dbhost' => 'localhost',
  'dbport' => '',
  'dbtableprefix' => 'oc_',
  'mysql.utf8mb4' => true,
  'dbuser' => 'nextcloud',
  'dbpassword' => '...',
  'installed' => true,
  'instanceid' => '...',
  'htaccess.RewriteBase' => '/',
  'memcache.local' => '\\OC\\Memcache\\APCu',
  'filelocking.enabled' => 'true',
  'memcache.locking' => '\\OC\\Memcache\\Redis',
  'redis' => 
  array (
    'host' => '/var/run/redis/redis.sock',
    'port' => 0,
    'dbindex' => 0,
    'password' => '',
    'timeout' => 1.5,
  ),
  'mail_from_address' => '...',
  'mail_smtpmode' => 'smtp',
  'mail_sendmailmode' => 'smtp',
  'mail_domain' => '...',
  'mail_smtphost' => '...',
  'mail_smtpport' => '25',
);

Output errors in nextcloud.log in /var/www/ or as admin user in top right menu, filtering for errors. Use a pastebin service if necessary: NO ERRORS IN THAT TIME PERIOD