Now I found the solution for this.
The alternatives are linking to /usr/share/icons instead of /etc/X11/cursors.
Which means it works, if /etc/alternatives/x-cursor-theme is linked to the theme files in /etc/X11/cursors.
The theme files in /etc/X11/cursors contain the "Inherits" line.
Now I found the solution for this.
The alternatives are linking to /usr/share/icons instead of /etc/X11/cursors.
Which means it works, if /etc/alternativ es/x-cursor- theme is linked to the theme files in /etc/X11/cursors.
The theme files in /etc/X11/cursors contain the "Inherits" line.