[2.0.4] Combo Box not Clearing --- to be checked

2.0.1-2019-11-22_16:54/Mac10.15.2/Java13(64)13.0.1+9

Script

def Combo_One(Combo_Header,items):
    selected = select(Combo_Header, options = items)
    return selected

Loop

    Displays a multi selection ( 4 or more Items )
    v_Select = Combo_One("Is Image on Screen ",("No","Yes","Display","Copy Existing","Exit"))

    do something
    Displays a multi selection again ( 4 or more Items )

Randomly it will leave a combo box on screen that is inactive and can only be dragged out of the way