Page Action Categories & Drop Downs

Hi All,

I have a page, which has some actions contained in a drop down. So the layout is as follows....

ActionContainer (Main Action Container)
ActionContainer (Action Container for Drop Down)
Action1
Action2
Action3
Action4

These actions are promoted, and are currently displayed in the "New" section.
Note I haven't found a way to promote the whole drop down, so they are displayed normally.

I am trying to tidy up the page, and add action categories.
It seems that as soon as I assign a category to these actions, they disappear from the promoted tab.
If I just set the PromotedCategory property to "New", then they are fine. Am I doing something wrong?

It seems strange that I can't assign them a Promoted Category.