Remote Desktop 2012r2 – Shadowing Unspecified Error

In an effort to combat the Specter/Meltdown vulnerability Microsoft has rushed a few patches out into the wild that have been creating some odd issues on workstations and servers alike. I want to address the Unspecified Error when attempting to shadow a session in Remote Desktop 2012r2.

This is what happens when you rush a patch into the wild:

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