OwnCloud Files not showing up in the Browser
In case you have uploaded some files to your OwnCloud, no matter how, but they not showing up in the browser, check that you include the following config parameter in your <owncloud root>/config/config.php file.
‘filesystem_check_changes’ => 1
You can also trigger a file scan by using the following commands.
File scans can be performed per-user, for a space-delimited list of users, for groups of users, and for all users.
sudo -u www-data php occ files:scan –all
sudo -u www-data php occ files:scan <username>
Define how often filesystem changes are detected
The files:scan command