[LayaAir 2.0]跳转场景后laya.core.js就报Cannot read property 'width' of null的错误

偶发性bug。
Uncaught (in promise) TypeError: Cannot read property 'width' of null
    at Function.Texture._create (laya.core.js:15946)
    at Texture.__proto._onLoaded (laya.core.js:15750)
    at EventHandler.__proto.runWith (laya.core.js:1410)
    at ResInfo.__proto.event (laya.core.js:1166)
    at LoaderManager.__proto._endLoad (laya.core.js:14880)
    at Loader.onLoaded (laya.core.js:14850)
    at EventHandler.__proto.runWith (laya.core.js:1409)
    at Loader.__proto.event (laya.core.js:1166)
    at Loader.__proto.endLoad (laya.core.js:16545)
    at Function.Loader.checkNext (laya.core.js:16581)
 
laya.core.js:15946里面的代码是：Texture._create方法中if (bitmap.width && (x+width)> bitmap.width) 里的bitmap为null，往上看可能是source为null
但是仍然无法判断到是我的场景UI的问题还是代码的问题