Well i just Tested something and had to find out if i turn off "Maximize Carbonite Map Instead of opening normal map" and then have Normal map open in small and Carb Map in small i can mouse over the areas and see them as you should. And as soon i turn it back on as it should be the Map does not work again.
Here a Screen of what i mean:
Edit:
Even did a fresh Install with all SavedVariables Deleted and no change.