[LayaAirIDE 2.0]Dialog 第一次打开总是出现在窗口右下角，这是为啥，再打开就正常剧中了？

Dialog 第一次打开总是出现在窗口右下角，这是为啥，再打开就正常剧中了？

随便弄一个窗口，都是这样，代码如下

export default class SettingDialog extends Laya.Dialog {

    constructor() {

        super();

        this.loadScene('assets/scenes/dialogs/SettingDialog.scene');

    }

}

{

    "x":0,

    "type":"Dialog",

    "selectedBox":2,

    "selecteID":3,

    "searchKey":"Dialog",

    "props":{"width":1624,"sceneColor":"#000000","runtime":"script/view/dialogs/SettingDialog.js","height":750},

    "nodeParent":-1,

    "maxID":4,

    "label":"Dialog",

    "isOpen":true,

    "isDirectory":true,

    "isAniNode":true,

    "hasChild":true,

    "compId":2,

    "child":[

        {

            "x":15,

            "type":"Image",

            "searchKey":"Image",

            "props":{"y":98,"x":450,"skin":"assets/dialog/bg_01001.png","scaleY":1,"scaleX":1},

            "nodeParent":2,

            "label":"Image",

            "isDirectory":false,

            "isAniNode":true,

            "hasChild":false,

            "compId":3,

            "child":[

                ]

        }],

    "animations":[

        {

            "nodes":[

                ],

            "name":"ani1",

            "id":1,

            "frameRate":24,

            "action":0

        }]

}