cannot set keyboard to german

[Niene Rink]

Hello guys,
i try to customize a fedora-live-mate-compiz live os for me.

I do it with livemediacreator as described on the web page from media
creator.

My first problem is solved (swap with zram), i switch from rawhide to
fedora-33.

What i cannto solve is my problem switching the keyboard in the desktop
to german. The console has a german keyboard, a x terminal in gnome not.

My settings in the .ks file are as follows:

keyboard --vckeymap=de --xlayouts='de'
lang de_DE.UTF-8

The desktop is in german, but not the keyboard.

I build the livos in a mock environment.

Any ideas? Any hints what my error is