Updated custom repository with new packages but while running spacewalk-repo-sync it says "No new packages to sync."

Issue

• Updated custom repository with new packages but while running spacewalk-repo-sync it says "No new packages to sync."

# createrepo /var/www/html/redhat/6Server/
115/122 - noarch/perl-Test-Fatal-0.010-1.noarch.rpm
.
.
122/122 - noarch/perl-Mail-Sendmail-0.79_16-1.noarch.rpm
Saving Primary metadata
Saving file lists metadata
Saving other metadata


# spacewalk-repo-sync --channel=rhel-x86_64-server-ghcustom-6
Repo http://satellite.example.com/redhat/6Server/ has 121 packages.
No new packages to sync.
Sync complete

• We can see here that there are 122 packages at creating repo but while running spacewalk-repo-sync on satellite server only sees 121 packages, why ?