切换项目后切换场景概率报错，这个调用栈的报错可能是因为什么？

Creator 2.x
#1

[Error] TypeError: null is not an object (evaluating ‘this.data._prefab’)
_doInstantiate (src/cocos2d-jsb.fb56c.js:8589)
syncWithPrefab (src/cocos2d-jsb.fb56c.js:39606)
_onBatchCreated (src/cocos2d-jsb.fb56c.js:7089)
_onBatchCreated (src/cocos2d-jsb.fb56c.js:7095:84)
_load (src/cocos2d-jsb.fb56c.js:7916)
runSceneImmediate (src/cocos2d-jsb.fb56c.js:6037)
（匿名函数） (src/cocos2d-jsb.fb56c.js:6136)
（匿名函数） (src/cocos2d-jsb.fb56c.js:22770)
（匿名函数） (src/cocos2d-jsb.fb56c.js:18655)
（匿名函数） (src/cocos2d-jsb.fb56c.js:26536)
fireTimeout (jsb-adapter/jsb-builtin.js:2033)
tick (jsb-adapter/jsb-builtin.js:1995)
JSObjectCallAsFunction
se::Object::call(std::__1::vector<se::Value, std::__1::allocatorse::Value > const&, se::Object*, se::Value*)
cocos2d::EventDispatcher::dispatchTickEvent(float)
-[MainLoop doCaller:]
-[DYDisplayLinkInterposer forwardDisplayLinkCallback:]

IODispatchCalloutFromCFMessage




CFRunLoopRunSpecific
GSEventRunModal
UIApplicationMain
main

#2

大厅与子游戏模式切换项目后，再切换场景概率发生