Hi
I while ago I posted a querstion on stackoverflow and since I have no responses on it I just wanted to link it, so the Modx Pros here can find it
Because the Title of my Post here should tell you enough I will not explain it in detail again.
So here is the Link:
http://stackoverflow.com/questions/22159855/modx-formz-does-not-keep-the-submitted-values-neither-its-error-messages
Thanks for your help and have a nice day!