focus control with cinematic camera

hi all - I have been working with the cinematic cameras in my projects, and it seems that in all of my projects, the eyedropper tool that allows you to select an object to focus on does not always work - and its consistent in its behavior - the objects that will respond always do so, and the objects that do not, never do - but they are all just regular static meshes, and everything has collision (if that even matters) does anyone else have this problem? its a very convenient tool and I’d like to use it.