Problem has been fixed.
Hopefully this solution will help others as well (perhaps through a keyword search of Google/Bing)
Do not have Dell Host Integration Toolkit (I had 4.7.1) installed when performing an install/upgrade of Single Sign-On. After the VMWare software is install then you can install the Dell Host Integration Toolkit.
According to VMWare Support it's a known issue (internal documentation) and are looking to resolve it shortly.