When keyboard input grabbing is enabled, all keyboard events (including special keyboard shortcuts) are sent to the remote desktop instead of being used on the local desktop.

This configuration stops working correctly if the active Space gets changed while the NoMachine client window is in fullscreen mode (e.g. through four fingers pad swiping).

In order to enable keyboad input again, the user could open and close the session menu (Ctrl + Alt + 0) or toggle the keyboard grabbing off and on again (Ctrl + Alt + K).