RHEL 7 server not seeing most current packages available on Satellite 5.7 / cant install errata

Hello All,

I'm having numerous issues with my RHEL servers installing errata, bug fixes and software updates available from our Satellite server.
For example, according to satellite, I have a package I need to updated called systemd-sysv-219-57.el7_5.3.x86_64.rpm on one of my host.
When I try to push the update I get a failed response with "Error while executing packages action: empty transaction [[6]]".

When I go onto the server itself and run yum update systemd-sysv, i get response: This system is receiving updates from RHN Classic or Red Hat Satellite.
No packages marked for update

If I try to do yum install systemd-sysv, I get response: This system is receiving updates from RHN Classic or Red Hat Satellite.
Package systemd-sysv-219-57.el7_5.1.x86_64 already installed and latest version
Nothing to do

As you can see the current version is 5.1 but the Satellite server says I need to upgrade to 5.3 so I'm not really sure why they are not talking correctly. This is not happening for all packages/errata but its happening for quite a few.
Furthermore, when I run yum update I only see about 5 items that need to be updated but satellite tells me about 28+ items need to be updated. Not sure why there is a discrepancy.

Things I have tried:
checked /etc/yum.conf - to ensure nothing is excluded

checked yum repolist - to ensure the system is subscribed to the correct channels

Ensured rhn-client-tools and yum-rhn-plugin are at latest version

Deleted system from Satellite and re-registered it

Tried enabling and disabling /etc/yum/pluginconf.d/rhnplugin.conf

I tried - rhn-profile-sync.

Using command- rhn_check -vvv doesnt help very much as it says the same error but no details as to why.

yum clean all

Let me know wat you think