Since version 17 of After Effects, this shortcut no longer works... A very annoying problem for a super useful shortcut. Is version 17 have an anniversary? The shortcut setup is correct, if I click the 3 keyboards the After Keyboard shows me that it should work on shortcut preferences. But not works. I updated to version 18.2.1 right now and the problem continues.
By the way, the keyboard shortcuts panel only shows me the correct function of the keys if I don't click ctrl first then shift or D. If I click ctrl first, it doesn't recognize either the shortcut. In the timeline it doesn't matter, it doesn't work anyway as you can see in the gif attached.
I wonder, what language is your app set to use? And what keyboard layout do you use? I've heard of others that have issues like this when switching the app to another language. If you switch to or from English, does it fix anything? Also, are you using a North American keyboard or another?