Yesterday Gregg reported this problem.
From what I can see, the problem is that computers at NOVA have difficulties to sign-out/shutdown because Morphic won't stop.
So far, I can't reproduce the problem in my computer, but I did see the problem happening in Gregg's VM.
In theory, the windows service should catch Window's notification that the system is shutting down and send Morphic the signal to key-out any user before being stopped. For some reason, this is not working in that case.
Also, Gregg noticed that, if the system doesn't auto key-in (because he removed the credentials from the computer), he can't reproduce the problem anymore.