I've read the thread and see the issue is being taken care of. I just wanted to add that I had the same problem on an SBS 2011 server. Before finding this thread, I uninstalled, reinstalled, and then moved Xeams to a Windows 7 Professional box in an attempt to see if the problem would go away. The same thing happened again.

After reading these comments, I uninstalled KB4338815 and the issue was resolved. However, this is temporary, so hopefully this will be resolved soon.