Cannot change the order of available content types when creating pages. Sorts in alphabetical order.

I am unable to change the order of available page types in edit mode when creating new pages.

I have tried in code to change "order" for the content type (see code below), but the pages are sorted in alphabetical order no matter what I do. If I change the page types Display Name, the order changes.

Is there a setting i´m missed to change order from alphabetic to index?

    [ContentType(
        GUID = "ce73b558-c476-485c-aedc-6edaf055efc2",
        DisplayName = "Lokal Page",
        Description = "Page for locals",
        Order = 20,
        GroupName = Global.GroupNames.Local,
        AvailableInEditMode = true)]