2nd Final does not work

I have finished all Championships to reach the second final. But i can’t Play it.
The first final was all good but when i reached the second final the Icon was shown on the map. Then i switched off my XboxOne. After starting the xbox in the evening the Icon for the second final was not there anymore.
So i played more and more Championships and after every finished Championship the Comes a message: 1 Championship left till final and the 1 turns to 0. When i go back to the Horizon Area there is a message: You unlocked the second final. But then nothing happens. No Icon, no route, i only can go on finishing Championships. So what is wrong there???
Anyone with the same Problem???