Sadly not because it is on a WAMP installation at the moment.
Perhaps you could try publishing a module to this position on a test installation and see if this problem can be replicated.
I will move the WAMP installation online shortly to an online test environment. Once I have done that I can give you access.
Update: I have just checked the CorpWay demo. On the home page this module is published and if you resize the window it disappears. I may well use the Left position instead, but nevertheless it would be useful to know if the Custom_4 position can be shown when resized to smaller screens.
I must say that the more I explore this template and the Vertex framework the more I am impressed!