Listbox doesn't work properly when a tree componet is added to stage

[mikecass]

When I have a listbox component (UI comp set 1) on the stage and then add a tree component (UI comp set 2) the listbox loses the capability to scroll to an entry via keys. The selection moves to the proper location, but the window will not scroll the entry into view.

Does anyone have a fix/solution for this? I sent a report to support a month ago, but they have not gotten back to me.

Thanks in advance