Dynamic-aware Excel incorrectly flagging our custom XLL functions as being array functions?

Hello, we have the same problem that even functions that return only one string are considered to be potential array functions. This is true for XLL functions and for easy VBA functions ....

A simple function

Public Function SayHello () As String
     SayHello = "Hello"
End Function

will be added in the new Excel version

= @ SayHello ()

and if you then enter the formula without @

= SayHello ()

will be in the old Excel version

{= SayHello ()}

...?

So if the functions can not return an array or object (Variant), then the behavior is not understandable in that though the UDF can only return a single object ....