This is happening consistently throughout an Air application on any form with one or more ComboBoxes. Immediately after the first click on any ComboBox on the form, the clicked ComboBox's items are all disabled and it closes. After that all of the ComboBox's on the form behave normally.
Also, I debugged one form and at the point where the ComboBox closed and the event trigger was null.
Any insight into why this is happening would be appreciated.