Timestamp 01.01.2010 on synced files

Hello,

after syncing files into local folder, all files have the timestamp 01.01.2010. Files, which where copied into the folder on the local computer show the correct date (and ONLY on that computer). After syncing them on another computer, they show the wrong date. A friend of mine and me are working on the same file and it`s confusing if the file always shows the wrong date.

Nextcloud version: 14.0.3
Operating system and version: Ubuntu 16.04
Apache or nginx version: Apache/2.4.18
PHP version: 7.2.11

The issue you are facing:
Synced files always show following date as timestamp “01.01.2010”.

Is this the first time you’ve seen this error?:
No, it appeared in previous versions too (but wasn`t so important to me then).

Steps to replicate it:

  1. Copy file into local (synced) folder on e.g. computer1 -> timestamp OK
  2. Same file has, after successful sync on computer2, the timestamp “01.01.2010
  3. The same happens when i upload files via browser and sync them on both computers

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

<?php
$CONFIG = array (
  'instanceid' => 'xxx',
  'passwordsalt' => 'xxx',
  'secret' => 'xxx',
  'trusted_domains' =>
  array (
    0 => 'xxx.yyy.ccc',
  ),
  'datadirectory' => '/path/to/my/data',
  'overwrite.cli.url' => 'https://xxx/nc',
  'dbtype' => 'mysql',
  'version' => '14.0.3.0',
  'dbname' => 'xxx',
  'dbhost' => 'xxx',
  'dbport' => '',
  'dbtableprefix' => 'oc_',
  'mysql.utf8mb4' => true,
  'dbuser' => 'xxx',
  'dbpassword' => 'xxx',
  'installed' => true,
  'maintenance' => false,
  'theme' => '',
  'loglevel' => 2,
  'memcache.local' => '\\OC\\Memcache\\APCu',
  'updater.release.channel' => 'stable',
  'updater.secret' => 'XXX',
  'filelocking.enabled' => false,
);

Apache-log during upload via browser and local folder (computer1) (renamed files for better indentification):

192.168.0.1 - - [27/Oct/2018:16:23:24 +0200] "PUT /nc/remote.php/webdav/timestamp_test_browser.pdf HTTP/1.1" 201 984 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:63.0) Gecko/20100101 Firefox/63.0"
192.168.0.1 - - [27/Oct/2018:16:23:26 +0200] "PROPFIND /nc/remote.php/dav/files/mario/timestamp_test_browser.pdf HTTP/1.1" 207 2052 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:63.0) Gecko/20100101 Firefox/63.0"
external_ip  - mario [27/Oct/2018:16:23:31 +0200] "GET /nc/remote.php/dav/files/mario/timestamp_test_browser.pdf HTTP/1.1" 200 986036 "-" "Mozilla/5.0 (Windows) mirall/2.3.3 (build 1) (Nextcloud)"
192.168.0.1 - mario [27/Oct/2018:16:23:48 +0200] "GET /nc/remote.php/dav/files/mario/timestamp_test_browser.pdf HTTP/1.1" 200 986179 "-" "Mozilla/5.0 (Windows) mirall/2.3.3 (build 1) (Nextcloud)"
192.168.0.1 - mario [27/Oct/2018:16:23:48 +0200] "PUT /nc/remote.php/dav/files/mario/timestamp_test_local.pdf HTTP/1.1" 201 996 "-" "Mozilla/5.0 (Windows) mirall/2.3.3 (build 1) (Nextcloud)"
external_ip - mario [27/Oct/2018:16:24:31 +0200] "GET /nc/remote.php/dav/files/mario/timestamp_test_local.pdf HTTP/1.1" 200 986032 "-" "Mozilla/5.0 (Windows) mirall/2.3.3 (build 1) (Nextcloud)"

computer1:
timestamp_test_browser.pdf = 01.01.2010 after sync
timestamp_test_local.pdf = 15.10.2018

computer2:
timestamp_test_browser.pdf = 01.01.2010 after sync
timestamp_test_local.pdf = 01.01.2010 after sync