Problem with ICloneable

[!NoItAll]

I am trying to make a deep copy by adding a clone property to my class.

Public Class MyClass
    Implements ICloneable
    Public Property Foo as String
    Public Property Poo as MyOtherClass
    Public Function Clone() as Object Implements System.ICloneable.Clone
          Return new MyClass With {.Foo = Foo, .Poo = Poo.Clone}
    End Function
End Class
 
Public Class MyOtherClass
    Implements ICloneable
    Public Property FooYoung as Byte()
    Public Property Cookie as String
    Public Function Clone() as Object Implements System.ICloneable.Clone
         Return New MyOtherClass With {.FooYoung = FooYoung, .Cookie = Cookie}
    End Function
End Class
 

My Problem is that the properties of MyOtherClass do not copy even though the properties of MyClass do copy properly.
What am I missing?

[!NoItAll]

Ok - found the issue (after only 2 stinking hours) and it was my own stupid fault. One of the assignments I made was .foo = .foo instead of .foo = foo - the extra dot in front of foo so I was copying the empty property...
Doh!