Controller on PC is not working (Fortnite)?

When I start the game I can only use it with a controller Mouse and keyboard do not work at all (Windows key etc…) Then when I was alone in creative mode I could normally play with my controller but then with friends in a battle royal round against wanted I could not do anything (keyboard and mouse) / (controller)

Maybe once the mouse and Tasta complete so that only the controller's turn

https://www.epicgames.com/...ce?lang=de

There you will be helped.