Dear Customers,
I am Dave Nicholson and work for Steinberg in small team of people involved in the renovation and consolidation of the the user-experience in Cubase.
We are continuously at work updating Cubase, especially under-the-hood. We hope that the users are not inconvenienced by our work, but in this case I must personally take responsibility for over-rationalizing the behaviours of our controls, and missed the special case of another click on this kind of on-only button.
In my defense i can only offer that there is exactly one button in the whole application that has this extra behaviour.
It will be fixed as soon as practical given the release schedules we currently have in place.
Sorry for the inconvenience,
Dave Nicholson