Cluster Aware Updating is Hung

I don't know if you can call this a bug. But I would definitely say it is something that needs to be addressed.

Circumstances:

2 - node cluster

Windows 7 high avail VM is hung at 125 of 151 doing its windows updates.

Attempting a CAU from a 3rd Windows  Server 2012  (DC) with CAU installed

Node holding the hung VM gets stuck draining.

Cannot shutdown or turn off the VM. Cannot live or quick migrate the VM.

I ended  up saving the VM and that shut it down. The cluster node finished draining and CAU completed.