Keyboard shortcut for activities not working

[germaineman]

My system: MauiLinux 2.1 clean installation. Plasma v 5.8.3 KDE apps v 16.08.2 Frameworks v 5.27.0 Qt v 5.7.0 Kernel 4.4.0-53-generic

I click on the activities settings icon in the top-left corner of my screen -the one that looks like a small cogwheel-
Click on ... Activities
Click on + create activity
in the window Create a New Activity -- Plasma General tab I enter a name and description for the activity
In the tab Other I go to Shortcut for switching to this activity: and click in the box
I press Shift Ctrl D
Click on Create
Now press Shift Ctrl D ... Nothing happens

Shutdown and restart the system to my default acivity
Now press Shift Ctrl D ... Nothing happens

Go to System Settings > Global Shortcuts > Plasma
Here I find an entry: switch-to-activity-e623eae7-b968-4052-bf75-fae88f8e57f2  > Ctrl+Shift+D >

So there seems to be a shortcut, but pressing the keys on the keyboard produces no result
What am I doing wrong, can anybody tell me?

[leszek]

Is the activity running. I think switching only works if the activity is running.
Also make sure that the Ctrl+Shift+D key combination isn't used by other applications.

[germaineman]

Thank you for your suggestions. It does not make any difference if the activities are in use or not. As far as I can see Ctrl+Shift+D is not in use within the global shortcuts
It seems to be an issue of plasma 5 In plasma 4 I had the same thing working without problem
I intend to pose this question in the KDE forums as well