WINCC 7.5 SP2 UPD4 - HMIRuntime.ActiveScreen.Parent missing

Dear Sirs,

just installed the UPD4 with UPD2 this VBA script would not fail:

HMIRuntime.ActiveScreen.Parent

Now it fails everywhere, everytime.

Error says

object needed 'HMIRuntime.ActiveScreen.Parent'

I just want to read HMIRuntime.ActiveScreen.Parent.UserData or TagPrefix from inside a Picture window.

I make visisble the picure window and set its UserData, this was working until UPD4 upgrade.

Please let me know, thanks,  BR

edit: 

just tried with ansiC to read TAG prefix but fail as Property not found:

Thank you,  so basically my script should work but it would be safer this way, anyway I cannot find a Example: Reading Object Properties the way I get the  Tag = ScreenItems.Parent.Parent.UserData is safe?

Sub OnOpen()

Dim Tag

Dim objButton

Tag = ScreenItems.Parent.Parent.UserData

HMIRuntime.Trace "CURRENT TAGPREFIX via UserDATA: " & Tag & vbNewLine

Set objButton = HMIRuntime.Screens("PAGENAME").ScreenItems("TITOLO")

With objButton

.Text = Tag

End With

End Sub