SAP BPM and no refresh of UI written in UI5

Hello,

I started to implement UIs for SAP BPM in UI5 instead of WebDynpro.

In NWDS I had to create two Development Comonents (DC):

1. J2EE Web Module containing the UI
2. EAR with the Webmodule as dependency

I followed this steps: SAPUI5 Integration into SAP BPM Made Easy

In the Standard-Project (after the NWDS wizard to create a UI), there is a model containing Strings.

These Strings define the texts of Buttons, Form Elements, Header, ...

I have changed one String in another Header Text.

Additionally I have added one more textfield in the view.

After changing the source I "Build"* the Web Module DC and I "Deploy"* the EAR containing this Module as Dependency.

After starting the BPM process I've received the Task and the UI of the Human Activity. But there are no changes in UI.

No text change. No new textfield.

Why?

Thanks for help in advance.

* Commands in Development Infrastructure