So outside of menus and such sometimes the mouse cursor stays on the damn screen. So you have the dot in the middle to act as a sort of “crosshair” to tell you were the middle of the screen is. Then you also got the mouse cursor floating around with it too. Which is highly annoying.
Since it might be a graphical error I have an AMD 580 8GB running the latest drivers. 18.2.2. This specific driver has improvements for KCD which is why I got it in the first place.