Sync - how does it work?

Hello,

I have uploaded wordpress to my remote host and set up the project in phpstorm. The tool downloaded all project files from the remote server. Then I performed the installation on the remote host and added themes to my local project files.

I would now expect that phpstorm downloads the wp-config.php and uploads the theme files, but when I press the sync button nothing happens. Even when I click on Tools -> Deployment -> Download from remote server the changes are not detected.

Am I doing something wrong?

Thanks!