Regional Settings are not saved during reboot

I build my own WinCE7 Image with BSP2.4b2 and Workspace 2.4b2 for Colibri T20 256MB IT.
In the Workspace I added the locale for Germany SYSGEN_NLS_DE_DE and French SYSGEN_NLS_FR_FR.
When I run the image, select the local German (Germany) in the Regional Settings, save the registry and reboot the device, the local is Englisch (United States) again.
Why can the local no longer be saved?
In our old Image with BSP1.4 it was working?

Has it something to do with this Toradex feature: