Button component loops 2 squares

programming flash
1

I’m trying to create some buttons dynamically. When I test the code below, a white rectangle appears and the button loops its 2 squares.

import flash.display.MovieClip;

function createButton(event:Event) {
    var classType:Class;
    classType = getDefinitionByName("SingleButton") as Class;
    obj_arr[totalObjects] = new classType();    
    addChild(obj_arr[totalObjects]);

    // properties_txt.text = "Properties of " + event.target.selectedItem.label;
}

I’m using Flash Professional CC. How can I fix this?

Edit: I duplicated standart “Button” component in library named it “SingleButton”.

2

When you duplicate the Button component, try setting the Base class to fl.controls.Button.