How to sync Empty/Hidden files?

By default, empty and hidden files are ignored during syncing, this functionality can be enabled on the Policies:

Log into the web portal as Tenant Admin, go to the Management Console / Group Policy / Folder & Storage / Attached Folder, here check 'Allow syncing of empty files'/'Allow syncing of hidden files', click on the 'Save' icon at the bottom of the page to save the changes.

After the change is saved, please, restart the Windows Client/Server Agent and the empty files will be synchronized.

From the Cluster Admin session, this functionality can be also enabled, always keeping in mind that this change will override Tenant Admins Policy.