if I had to guess, this is another case of the faulty U.I design of stacked panels in Ae that is acting up. when you are with stacked panels, it can appear when the panel is not open wide, that there is no more features in that panel. this is not a new thing to CC2017, but ever since the stacked panels was introduced. in CC2017 it's can be even less apparent when your panel is not selected, that you really have more features in the panel.
I guess this is what you see

where is the rest?
click on the panel you will see it's boundaries

you can now drag it down by clicking on the edges, holding and dragging down.

there you go!
if you don't want to work in stacked panel mode, you can use the standard workspace that defaults to tabbed panels: in the tools menu click window->workspace->standard. you may have to click "reset standard to saved layout".

now it's more visible where the borders are
but if you want to work by the book, one can suggest that you should work in the motion tracking workspace.

personally I prefer the standard workspace and set my own panels when I need too.
hope this was the case and I was not mumbling on a different topic entirely!