For those interested, we've been working with Microsoft support and they found in the MECM logs that the deployment of SC 5 is using "user context", even though "system context" was defined in the deployment configuration.And they also confirmed that...

Thanks for the info on the solution you found noted below in this thread.  I'm just curious if you ever worked with Cisco on this and got any feedback from them on why this happened with the normal SCCM deployment.  We're running into the exact same ...