🚨崩溃 NullReferenceException·DialogueBoxOnParentControl.<IsWr · 5xr7n4

*古古识字*
`since 2026.10.14 17:48:48`

***Classifier***
```csharp
NullReferenceException: Object reference not set to an instance of an object.```
***Callstack***
```csharp
[1].DialogueBoxOnParentControl.<IsWrong>b__37_0:0
[2].HGuGuExtension+<_MyInvoke_Imp>d__208.MoveNext:0
[3].UnityEngine.SetupCoroutine.InvokeMoveNext:0
```
***Attributes***
platform: *OpenHarmony*
os.version: *OpenHarmony OS OpenHarmony-7.0.0.105 / API-26 (tablet/HUAWEI/HUAWEI/TXZ/OpenHarmony-7.0.0.105/TXZ-W20/TXZ-W10/26/26.0.0.105/default/26.0.0.105)*
device.model: *TXZ-W20*
phone.number: *15773924198*
isPaid: ✅
currentWord: *足*
version: *2026.09.28*
scene.active: *02二级菜单之字*
playingLink: *-*
lastLink: *照着写字格*
secSinceLinkChange: *25.6*
secSinceLastFlowCall: *25.6*
clicksSinceLinkChange: *41*
shieldCount: *0*
dialogueBoxCount: *0*
isSynthetic: *false*
oplist:
```
[10-14 17:48:23] LoadSceneAsync: 02二级菜单之字
[10-14 17:48:23] 返回到二级菜单0
[10-14 17:48:23] Flow: BtnBack_OnClick
[10-14 17:48:21] 断点恢复补判横幅
[10-14 17:48:21] Flow: GameWritingZhaoZheXie
[10-14 17:48:21] [Cloud]断点续传:足 → GameWritingZhaoZheXie
[10-14 17:48:21] LoadSceneAsync: 03识字模块
[10-14 09:22:11] LoadSceneAsync: 02二级菜单之字
[10-14 09:22:11] 返回到二级菜单0
[10-14 09:22:11] Flow: BtnBack_OnClick
```
#ph15773924198
#02二级菜单之字
#NullReferenceException
#Unhandled exception
#ver20260928
#TXZ-W20
📸 [screenshot](https://bugsnap.cnaron.com/paid/15773924198.TXZ-W20.snap.2026.10.14.17.48.48.jpg)

附加现场（原 JSON 附件的内容）

【本地 opList（因果链，新→旧）】

[10-14 17:48:23] LoadSceneAsync: 02二级菜单之字
[10-14 17:48:23] 返回到二级菜单0
[10-14 17:48:23] Flow: BtnBack_OnClick
[10-14 17:48:21] 断点恢复补判横幅
[10-14 17:48:21] Flow: GameWritingZhaoZheXie
[10-14 17:48:21] [Cloud]断点续传:足 → GameWritingZhaoZheXie
[10-14 17:48:21] LoadSceneAsync: 03识字模块
[10-14 09:22:11] LoadSceneAsync: 02二级菜单之字
[10-14 09:22:11] 返回到二级菜单0
[10-14 09:22:11] Flow: BtnBack_OnClick
[10-14 09:22:03] Flow: GameWritingZhaoZheXie
[10-14 09:22:03] Flow: GameBbYellow_Finish
[10-14 09:22:03] Flow: GameBbYellow
[10-14 09:22:03] Flow: GameBbRed_Finish
[10-14 09:22:03] Flow: GameBbRed
[10-14 09:22:03] Flow: GameBbWhite_Finish
[10-14 09:21:29] Flow: GameBbWhite
[10-14 09:21:27] 断点恢复补判横幅
[10-14 09:21:27] Flow: GameNewWordEnter_Begin_NotCareFinish_OnlyForShowing
[10-14 09:21:27] 开始学习字[足]
[10-14 09:21:27] Flow: WhichLinkShouldBe_CurrentWordBegin
[10-14 09:21:26] LoadSceneAsync: 03识字模块
[10-14 09:21:16] Flow: PumpkinLamp_Finish
[10-14 09:19:39] 每日复习强制提示弹窗已展示
[10-14 09:19:39] 开始记忆曲线复习
[10-14 09:19:39] Flow: DailyReview
[10-14 09:19:38] LoadSceneAsync: 03小猫场景
[10-14 09:19:38] 记住1年级的一键开始字:足
[10-14 09:19:30] 记住1年级的一键开始字:足
[10-14 09:19:30] LoadSceneAsync: 01首页面

【前序异常（新→旧）】

[2026.10.14 17:48:48][Unhandled exception:DialogueBoxOnParentControl.<IsWrong>b__37_0 () (at <00000000000000000000000000000000>:0):NullReferenceException: Object reference not set to an instance of an object.]

【prefs（白名单）】

当前字: 足
本节课已学字: 口
每节课学几个字: 3
手机号: 15773924198
购买的会员类型: 11003
本地存的最新版本号: 2026.09.28
是否首次安装_bool: False
消消乐放宽机型: EEBBK S5，EEBBK S4
识字断点: 足|GameWritingZhaoZheXie

【最近 Debug.Log】

[17:48:21] 开始加载场景 03识字模块
[BackEventManager] Unregistered: 识字场景, removed 1, stack count: 2
[BackEventManager] Scene unloaded: 02二级菜单之字, stack count: 2
[BackEventManager] Registered: 学习场景, stack count: 3
[17:48:21] 03识字模块 加载完成，用时 0.35 秒。
[17:48:21]  <color=#FF515A>[OP]：</color> 断点续传:足 → GameWritingZhaoZheXie <- 打开App1014-09:19：TXZ-W20@2026.09.28SNOP <- 学习成语[牛郎织女-1] <- 学习成语[龙宫借宝-1] <- 
[17:48:21] 发送了oplist到后台
[17:48:23] 开始加载场景 02二级菜单之字
[BackEventManager] Scene unloaded: 03识字模块, stack count: 3
[17:48:23] 02二级菜单之字 加载完成，用时 0.07 秒。
[BackEventManager] Registered: 识字场景, stack count: 4
[17:48:32] currentIdx:17; newIdx:265
正确答案： <color=#FFE08D>63</color> 
[17:48:47] currentIdx:17; newIdx:323
正确答案： <color=#FFE08D>24</color>