I had a similar issue but with the Virusscan module, however, after a reboot of the updates machines, they started reporting the correct version back to ePO. Have you rebooted any of them yet?
Perhaps the clients have not completed an agent-to-server communication (ASCI) since the patch was applied. If they have try deleting the machine from the system tree and perform another ASCI. This will re-populate the machine in the system tree and it may get the properties reporting correctly.