Last Seen not updated while result online and doing normal backups

Hello,

cause i’ve to monitor many UrBackup server i’m checking the lastseen in sqlite to get if a host is online or not. I’ve some random hosts that have last seen data not updated but result online and do normal backups like in image.

urbackup_lastseen

Server versione: Docker UrBackup 2.4.12

Any suggestion or fix?

Thanks