The undo shortcut is not working in the after effects CC.

[man jae0D4B]

Hi,
I just installed after effects CC.
But the undo key doesn't work.
The shortcut is definitely Ctrl+z.
But I press Ctrl+z, it doesn't react.
The same goes for running Edith > Purge >undo.

It deactivates without a response.
Only undo not working.
It was the same when I reinstalled CC.
It's making me crazy.

[Joost van der Hoeven]

What are the steps you want to undo? Undo only works for actual changes in a Comp or inside the project panel. It does not und closing a panel or resetting your screen layout. If you want to reset the screel layout use Window > Workspace > Reset "Default" to Saved Layout