Unable to see previous backups by clients

I have implemented URBackup Server (Version 2.4.13) in CentOS and configured several windows clients (versions 2.4.10 & 2.4.11). It was observed that when the client PC was formated and reinstalled client software, it is able to connect Server and backups are also occurring properly. The problem is that client is unable to see their previous backups from the client PCs. But, it is available in the server and as an admin I can able to see and download.

This type of issue occurred on all the clients which are reconnected after formatting the PC.
Please provide the solution if you can.

Thank you.