PS4 - Micro is not in Fortnite?

I have a problem that when I play Fortnite, I can't use my microphone. I already tried it with a headset which was connected via USB. Even a headset which was connected to the controller with an adapter cable brought no success. I can hear friends in the group but not what I'm talking about. Do I have to do something special with my PS4? Have all the PS4 settings, synonymous in the game but so far without success.

Settings> Sound> Disable Push To Talk. If it still does not work then switch to game chat (the option is under "Push to Talk").

Find nothing on the PS4 main menu or Fortnite with Push to Talk

In the Fortnite settings in the audio section should be the option.

Thanks, worked