I just compiled my project from xcode, and then launched again via the ue4 editor, and voila… it works.
I don’t know how, I don’t know why… nothing changed except that I first compiled via xcode, which installed the game on my device, but that one crashes automatically after the splash screen because it only builds the source code, so all the other project files are missing…
Then I re opend the editor, launched from there and it works…