🚨崩溃 NullReferenceException·LessonController.ReturnToMainMen · qgqfqn

*古古识字*
`since 2026.09.03 20:30:13`

***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: *iOS 18.7.8*
device.model: *iPhone12,1*
phone.number: *13489272605*
isPaid: ✅
currentWord: *边*
version: *2026.08.21*
scene.active: *00HomePage*
playingLink: *甲骨文卡片*
lastLink: *甲骨文卡片*
secSinceLinkChange: *422.0*
secSinceLastFlowCall: *-1*
clicksSinceLinkChange: *202*
shieldCount: *0*
dialogueBoxCount: *0*
isSynthetic: *false*
oplist:
```
[09-03 20:30:13] LoadScene: 00HomePage
[09-03 20:30:13] LoadScene: 00HomePage
[09-03 20:29:50] LoadSceneAsync: 01Lesson
[09-03 20:29:36] LoadScene: 00HomePage
[09-03 20:28:04] 记住1年级的一键开始字:边
[09-03 20:27:30] LoadSceneAsync: 01Lesson
[09-03 20:27:26] LoadScene: 00HomePage
[09-03 20:25:18] LoadSceneAsync: 01Lesson
[09-03 20:25:15] LoadScene: 00HomePage
[09-03 20:24:36] LoadSceneAsync: 01Lesson
```
#ph13489272605
#00HomePage
#NullReferenceException
#Unhandled exception
#ver20260821
#iPhone12,1
📸 [screenshot](https://bugsnap.cnaron.com/paid/13489272605.iPhone12.1.snap.2026.09.03.20.30.13.jpg)

附加现场（原 JSON 附件的内容）

【本地 opList（因果链，新→旧）】

[09-03 20:30:13] LoadScene: 00HomePage
[09-03 20:30:13] LoadScene: 00HomePage
[09-03 20:29:50] LoadSceneAsync: 01Lesson
[09-03 20:29:36] LoadScene: 00HomePage
[09-03 20:28:04] 记住1年级的一键开始字:边
[09-03 20:27:30] LoadSceneAsync: 01Lesson
[09-03 20:27:26] LoadScene: 00HomePage
[09-03 20:25:18] LoadSceneAsync: 01Lesson
[09-03 20:25:15] LoadScene: 00HomePage
[09-03 20:24:36] LoadSceneAsync: 01Lesson
[09-03 20:24:19] LoadScene: 00HomePage
[09-03 20:23:29] LoadSceneAsync: 01Lesson
[09-03 20:23:11] LoadScene: 00HomePage
[09-03 20:23:11] LoadSceneAsync: 02特色功能
[09-03 20:23:03] 记住1年级的一键开始字:边
[09-03 20:23:03] LoadSceneAsync: 01首页面
[09-03 20:23:03] [Cloud]打开App0903-20:23：IPHONE12,1@2026.08.21SNOP
[09-03 20:23:03] LoadScene: 00Load
[09-02 21:32:19] LoadSceneAsync: 02特色功能
[09-02 21:32:15] LoadSceneAsync: 01首页面
[09-02 21:32:08] LoadSceneAsync: 02特色功能
[09-02 21:32:06] LoadScene: 01首页面
[09-02 21:32:06] Flow: BtnBack_OnClick
[09-02 21:32:05] 记住1年级的一键开始字:边
[09-02 21:32:03] 每日复习强制提示弹窗已展示
[09-02 21:32:03] 开始记忆曲线复习
[09-02 21:32:03] Flow: DailyReview
[09-02 21:32:02] LoadSceneAsync: 03小猫场景
[09-02 21:32:02] 记住1年级的一键开始字:边
[09-02 21:31:55] LoadSceneAsync: 01首页面

【前序异常（新→旧）】

[2026.09.03 20:30:13][Unhandled exception:LessonController.ReturnToMainMenu () (at <00000000000000000000000000000000>:0):NullReferenceException: Object reference not set to an instance of an object.]
[2026.08.31 14:01:30][Unhandled exception:UnityEngine.UI.InputField.LateUpdate () (at <00000000000000000000000000000000>:0):NullReferenceException: Object reference not set to an instance of an object.]
[2026-06-15 21:35:46] [System.Collections.Generic.Dictionary`2::get_Item:0] KeyNotFoundException: The given key was not present in the dictionary. | errorMessage

【prefs（白名单）】

当前字: 边
本节课已学字: 
每节课学几个字: 5
手机号: 13489272605
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: 猜|CurrentWordExit

【最近 Debug.Log】

[LessonController] 进度更新: 100.0% (2/1)
[LessonController] 课程完成! 耗时: 20.8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...
[20:30:13] 开始加载场景 00HomePage
[LessonController] 场景加载请求已发送
[BackEventManager] Scene unloaded: 01Lesson, stack count: 0
[Audio] 已同步存档设置: SFX On=True, Volume=1
[20:30:13] 00HomePage 加载完成，用时 0.05 秒。
[HomePage] 初始化轮播器至索引: 2
[LessonController] 从结算弹窗确认退出
[LessonController] 执行返回主菜单逻辑...
[20:30:13] 开始加载场景 00HomePage