Keyboard shortcuts not working - Windows only

We have received several reports recently about some specific keyboard shortcuts no longer working on Windows 10. 
These reports all describe that "Ctrl+Alt+Shift+D" is no longer working for "Duplicate Array" command.

The reason for this is a recent Windows update that pushed Skype for Desktop onto Windows 10 machines, running the program as a startup process.  If Skype for desktop is there, Windows uses this keyboard shortcut and does not send it to Vectorworks for processing. Unfortunately, there is nothing that can be done to fix the issue by our development team. With the Windows updates, users now have this unless they are proactive about removing Skype.

Technical support recommends to either modify the workspace or stop Skype for desktop in order to continue using the original keyboard shortcut in Vectorworks. Please refer to the following article for steps on editing your workspace:

There is no problem with Skype for Business.  You may also see this on Windows 8 if you install Skype for desktop. This shortcut continues to work on Mac and other platforms.

There is also a separate, but related issue:

Keyboard shortcut "Ctrl+Alt+Shift+F"  may also stop working.  This appears to be a Windows bug that was also introduced in a Windows update. 

See:
https://developercommunity.visualstudio.com/content/problem/676325/ctrl-alt-shift-f-no-longer-working.html