unwanted actions while playing

Hi, Cubase moves suddenly to another group track while I hit a particular note on my keyboard. There is no note expression map active on that track I am playing on. What should be the problem here.

I am working with Cubase pro 10.5

You probably have a Remote control device active.

Yes, that is correct. But does that mean that it not allowed to have a remote control device active while playing, or?