Windows client turns red directly after backup, saying no current backup?

Hey. Running client 2.5.28.

I set UrBackup to run backups every hour. However, directly after a successful backup, the taskbar icon turns back red saying no current backup? But the hour is not yet reached which would trigger a new backup.

Is that normal?

Have you tried 2.5.29 ? - Also current server version is at 2.5.36.