SEP 12.1.5 Upgrade Clients not Showing in SEPM

Hello there -

This morning I've upgraded my two SEP managers to 12.1.5.  I used the same process as I always have (stopped services on both boxes, upgrade the first server, stop service, upgrade the second server - ensure services are running on both boxes).

After the upgrade I am unable to see any of my clients under the Clients Tab in SEPM.

The Home tab still has the information about the clients (Offline, out of date, etc) - and looking at each report I can see the names of my clients.

In the Clients Tab all of my groups are still there but they are empty.  Does anyone know what the issue here would be?

Thanks!

RT