🚨崩溃 NullReferenceException·LessonController.ReturnToMainMen · bpvxbq

*古古识字*
`since 2026.08.29 20:23:03`

***Classifier***
```csharp
NullReferenceException: Object reference not set to an instance of an object.```
***Callstack***
```csharp
[1].LessonController.ReturnToMainMenu:0
[2].UnityEngine.Events.UnityAction.Invoke:0
[3].HGuGuExtension+<_MyInvoke_Imp>d__208.MoveNext:0
[4].UnityEngine.SetupCoroutine.InvokeMoveNext:0
```
***Attributes***
platform: *IPhonePlayer*
os.version: *iPadOS 17.7.10*
device.model: *iPad7,1*
phone.number: *13798670302*
isPaid: ✅
currentWord: *这*
version: *2026.08.21*
scene.active: *00HomePage*
playingLink: *甲骨文卡片*
lastLink: *甲骨文卡片*
secSinceLinkChange: *28.5*
secSinceLastFlowCall: *121.5*
clicksSinceLinkChange: *61*
shieldCount: *0*
dialogueBoxCount: *0*
isSynthetic: *false*
oplist:
```
[08-29 20:23:03] LoadScene: 00HomePage
[08-29 20:23:03] LoadScene: 00HomePage
[08-29 20:22:39] LoadSceneAsync: 01Lesson
[08-29 20:22:34] LoadScene: 00HomePage
[08-29 20:22:34] LoadSceneAsync: 02特色功能
[08-29 20:22:32] LoadSceneAsync: 01首页面
[08-29 20:21:10] LoadSceneAsync: 02特色功能
[08-29 20:21:08] LoadSceneAsync: 01首页面
[08-29 20:21:05] LoadSceneAsync: 02特色功能
[08-29 20:21:03] LoadSceneAsync: 01首页面
```
#ph13798670302
#00HomePage
#NullReferenceException
#Unhandled exception
#ver20260821
#iPad7,1
📸 [screenshot](https://bugsnap.cnaron.com/paid/13798670302.iPad7.1.snap.2026.08.29.20.23.03.jpg)

附加现场（原 JSON 附件的内容）

【本地 opList（因果链，新→旧）】

[08-29 20:23:03] LoadScene: 00HomePage
[08-29 20:23:03] LoadScene: 00HomePage
[08-29 20:22:39] LoadSceneAsync: 01Lesson
[08-29 20:22:34] LoadScene: 00HomePage
[08-29 20:22:34] LoadSceneAsync: 02特色功能
[08-29 20:22:32] LoadSceneAsync: 01首页面
[08-29 20:21:10] LoadSceneAsync: 02特色功能
[08-29 20:21:08] LoadSceneAsync: 01首页面
[08-29 20:21:05] LoadSceneAsync: 02特色功能
[08-29 20:21:03] LoadSceneAsync: 01首页面
[08-29 20:21:01] LoadSceneAsync: 02二级菜单之字
[08-29 20:21:01] 返回到二级菜单0
[08-29 20:21:01] Flow: BtnBack_OnClick
[08-29 20:21:01] Flow: GameBbYellow
[08-29 20:21:01] Flow: GameBbRed_Finish
[08-29 20:21:01] Flow: GameBbRed
[08-29 20:21:01] Flow: GameBbWhite_Finish
[08-29 20:21:01] Flow: GameBbWhite
[08-29 20:21:00] 断点恢复补判横幅
[08-29 20:21:00] Flow: GameNewWordEnter_Begin_NotCareFinish_OnlyForShowing
[08-29 20:21:00] 开始学习字[这]
[08-29 20:21:00] Flow: WhichLinkShouldBe_CurrentWordBegin
[08-29 20:20:59] LoadSceneAsync: 03识字模块
[08-29 20:20:59] 记住1年级的一键开始字:这
[08-29 20:20:59] [Cloud]从去跳到这
[08-29 20:20:55] LoadSceneAsync: 02二级菜单之字
[08-29 20:20:55] 返回到二级菜单0
[08-29 20:20:55] Flow: BtnBack_OnClick
[08-29 20:20:49] Flow: GameBbWhite
[08-29 20:20:48] 断点恢复补判横幅

【前序异常（新→旧）】

[2026.08.29 20:23:03][Unhandled exception:LessonController.ReturnToMainMenu () (at <00000000000000000000000000000000>:0):NullReferenceException: Object reference not set to an instance of an object.]

【prefs（白名单）】

当前字: 这
本节课已学字: 今今个
每节课学几个字: 3
手机号: 13798670302
购买的会员类型: 11003
本地存的最新版本号: 2026.08.21
是否首次安装_bool: False
消消乐放宽机型: EEBBK S5，EEBBK S4
识字断点: 这|GameBbYellow

【最近 Debug.Log】

[LessonController] 进度更新: 100.0% (2/1)
[LessonController] 课程完成! 耗时: 21.4秒, 完成卡片: 1
[PinyinFlowCard] 游戏结束! 错题数: 0
[PinyinFlowCard] 游戏全部完成
[LessonController] 从结算弹窗确认退出
[LessonController] 执行返回主菜单逻辑...
[20:23:03] 开始加载场景 00HomePage
[LessonController] 场景加载请求已发送
[BackEventManager] Scene unloaded: 01Lesson, stack count: 58
[Audio] 已同步存档设置: SFX On=True, Volume=1
[20:23:03] 00HomePage 加载完成，用时 0.05 秒。
[HomePage] 初始化轮播器至索引: 19
[LessonController] 从结算弹窗确认退出
[LessonController] 执行返回主菜单逻辑...
[20:23:03] 开始加载场景 00HomePage