Drop down not populating correctly in App Designer R2018b

Hi all,

I have an enumeration class like this:

classdef values
    enumeration
        One, Two, Three, Four
    end
end

I want to use those values to populate a drop down menu in the app designer. In R2017b the following works:

[app.DropDown.ItemsData, app.DropDown.Items] = enumeration('values');

In R2018b it does not. When this portion of code executes, the drop down is populated with a single element, the first element of the enum.

When I do the same thing with a named value pair, by that I mean an enum that represents certain integer values, it works as expected.

I have attached the files to this post, for reference.

Is this expected behavior or have I happened on a bug? is there another way of populating the drop down?

I cannot manually populate them, as I am passing the parameter on to a function that expects an enum parameter.