The cc.PhysicsSprite behaviour changed?

We upgraded our game to 3.14, we are using chipmunk as physics engine
It is worked in older cocos2d-js engine, we create the cc.PhysicsSprite without sprite frame, but add a cc.Node to the PhysicsSprite as sub child, but it show nothing on 3.14

    var mBox = new Sprite("#dddd");
    var sprite = new cc.PhysicsSprite();
    sprite.addChild(mBox,0,10);