Edit Content inside of IconTabFilter (Edit/Display Fragments)

Hi ,

in my project I want to change the view (fragments) while I press the "Edit"-Button. This works fine.

But the problem is, that the fields in the change.fragment.xml view are empty.

If I check the properties in the change.fragment view than I can see, that they aren't empty.

Display Fragment: 

Edit Fragment

I try to use this example from SAP "SimpleForm480"

openui5/src/sap.ui.layout/test/sap/ui/layout/demokit/sample/SimpleForm480 at master · SAP/openui5 · GitHub

Could somebody give me a hint what I did wrong?

Thanks!