I am absolutely certain that I did all 16 tracks elite-phantom-racebox.

I've been going through the game methodically ,first campaign,then elite campaign and then lastly racebox for arcade perfect.

I was doing it that way so all I needed was to do the zone trophies lastly.

As I mentioned before,I knew there was no way to know ,other than to write them down on paper,which tracks I had completed.

So that's exactly what I did.

And no trophy and no way of knowing WHY!