In Windows 10 Creators Update, the text (NativeUIAObject.Name) in dialogs can not be recognised

There is a general problem with the Windows creator Version 1703 and TestComplete for recognising the text in all of standard dialog-windows: Window("#32770", ...). In other windows version there's no problem with this.

It's not possible to pick the inner UIAObject with TestComplete to get access to the NativeUIAObject.Name property any more. Therefore it is impossible to read the text of any standard windows dialog box any more.

For example, in object:
Sys.Process("notepad").Window("#32770", "Editor", 1).UIAObject("Editor").UIAObject("Möchten_Sie_die_Änderungen_an_Unbenannt_speichern_").NativeUIAObject.Name

The last part can not be recognised: 
UIAObject("Möchten_Sie_die_Änderungen_an_Unbenannt_speichern_").NativeUIAObject.Name 

Is there any idea of a solution or workaround for this problem?

Our testcases work interactively with the test objects and have to be able to read all of the standard windows dialogs.