diff --git a/src/lib/database/models/GenerationResult.ts b/src/lib/database/models/GenerationResult.ts
index c6d5a14..fc7d2e6 100644
--- a/src/lib/database/models/GenerationResult.ts
+++ b/src/lib/database/models/GenerationResult.ts
@@ -86,7 +86,14 @@ export class GenerationResult {
             expires_at: { $gt: currentTime }
         };
         
-        return await NeDBManager.update(this.dbName, filterQuery, update, { ...options, multi: false });
+        let finalUpdate = update;
+        // 如果没有操作符，自动包装在 $set 中
+        const hasOperators = Object.keys(update).some(key => key.startsWith('$'));
+        if (!hasOperators) {
+            finalUpdate = { $set: update };
+        }
+        
+        return await NeDBManager.update(this.dbName, filterQuery, finalUpdate, { ...options, multi: false });
     }
 
     // 批量更新结果
@@ -98,7 +105,14 @@ export class GenerationResult {
             expires_at: { $gt: currentTime }
         };
         
-        return await NeDBManager.update(this.dbName, filterQuery, update, { ...options, multi: true });
+        let finalUpdate = update;
+        // 如果没有操作符，自动包装在 $set 中
+        const hasOperators = Object.keys(update).some(key => key.startsWith('$'));
+        if (!hasOperators) {
+            finalUpdate = { $set: update };
+        }
+        
+        return await NeDBManager.update(this.dbName, filterQuery, finalUpdate, { ...options, multi: true });
     }
 
     // 删除结果
@@ -116,17 +130,25 @@ export class GenerationResult {
         const insertedResults: IGenerationResult[] = [];
         
         for (const resultData of results) {
-            const currentTime = Math.floor(Date.now() / 1000);
-            const result = {
-                ...resultData,
-                created_at: resultData.created_at || currentTime,
-                expires_at: resultData.expires_at || (currentTime + this.DEFAULT_EXPIRY_SECONDS),
-                is_read: resultData.is_read || false,
-                read_count: resultData.read_count || 0
-            };
-            
-            const insertedResult = await NeDBManager.insert(this.dbName, result);
-            insertedResults.push(insertedResult);
+            try {
+                const currentTime = Math.floor(Date.now() / 1000);
+                const result = {
+                    ...resultData,
+                    created_at: resultData.created_at || currentTime,
+                    expires_at: resultData.expires_at || (currentTime + this.DEFAULT_EXPIRY_SECONDS),
+                    is_read: resultData.is_read || false,
+                    read_count: resultData.read_count || 0
+                };
+                
+                const insertedResult = await NeDBManager.insert(this.dbName, result);
+                insertedResults.push(insertedResult);
+            } catch (error) {
+                // 如果是唯一约束冲突，说明记录已存在，可以忽略
+                if (error.message && error.message.includes('unique constraint')) {
+                    continue;
+                }
+                throw error;
+            }
         }
         
         return insertedResults;
diff --git a/src/lib/database/models/GenerationTask.ts b/src/lib/database/models/GenerationTask.ts
index 16a0fc2..f4b1796 100644
--- a/src/lib/database/models/GenerationTask.ts
+++ b/src/lib/database/models/GenerationTask.ts
@@ -92,26 +92,44 @@ export class GenerationTask {
 
     // 更新任务
     static async updateOne(query: any, update: any, options: any = {}): Promise<number> {
-        // 自动更新 updated_at 时间戳
-        if (update.$set) {
-            update.$set.updated_at = Math.floor(Date.now() / 1000);
-        } else {
-            update.updated_at = Math.floor(Date.now() / 1000);
+        const currentTime = Math.floor(Date.now() / 1000);
+        let finalUpdate = update;
+        
+        // 如果没有操作符，自动包装在 $set 中，防止文档被完全替换
+        const hasOperators = Object.keys(update).some(key => key.startsWith('$'));
+        if (!hasOperators) {
+            finalUpdate = { $set: update };
         }
         
-        return await NeDBManager.update(this.dbName, query, update, { ...options, multi: false });
+        // 自动更新 updated_at 时间戳
+        if (finalUpdate.$set) {
+            finalUpdate.$set.updated_at = currentTime;
+        } else {
+            finalUpdate.$set = { updated_at: currentTime };
+        }
+        
+        return await NeDBManager.update(this.dbName, query, finalUpdate, { ...options, multi: false });
     }
 
     // 批量更新任务
     static async updateMany(query: any, update: any, options: any = {}): Promise<number> {
-        // 自动更新 updated_at 时间戳
-        if (update.$set) {
-            update.$set.updated_at = Math.floor(Date.now() / 1000);
-        } else {
-            update.updated_at = Math.floor(Date.now() / 1000);
+        const currentTime = Math.floor(Date.now() / 1000);
+        let finalUpdate = update;
+        
+        // 如果没有操作符，自动包装在 $set 中，防止文档被完全替换
+        const hasOperators = Object.keys(update).some(key => key.startsWith('$'));
+        if (!hasOperators) {
+            finalUpdate = { $set: update };
         }
         
-        return await NeDBManager.update(this.dbName, query, update, { ...options, multi: true });
+        // 自动更新 updated_at 时间戳
+        if (finalUpdate.$set) {
+            finalUpdate.$set.updated_at = currentTime;
+        } else {
+            finalUpdate.$set = { updated_at: currentTime };
+        }
+        
+        return await NeDBManager.update(this.dbName, query, finalUpdate, { ...options, multi: true });
     }
 
     // 删除任务
diff --git a/src/lib/services/TaskPollingService.ts b/src/lib/services/TaskPollingService.ts
index a9d47c2..452c009 100644
--- a/src/lib/services/TaskPollingService.ts
+++ b/src/lib/services/TaskPollingService.ts
@@ -396,9 +396,10 @@ export class TaskPollingService {
                 return;
             }
 
-            const { status, fail_code: failCode, fail_msg, item_list } = result[historyId];            
-            taskLog(`调用即梦API检查结果 ${task.task_id}  [status：${status} fail_code: ${failCode} fail_msg: ${fail_msg}]`);
-            if (status === 20 || status === 45) {
+            const { status, fail_code: failCode, fail_msg, item_list } = result[historyId];    
+            let msg = `status:${status} code:${failCode} msg:${fail_msg}`;        
+            taskLog(`调用即梦API检查结果 ${task.task_id}  [${msg}]`);
+            if (status === 20 || status === 42 || status === 45) {
                 // 仍在生成中，更新下次轮询时间
                 await GenerationTask.updateOne(
                     { task_id: task.task_id },
@@ -409,15 +410,18 @@ export class TaskPollingService {
                         }
                     }
                 );
-            } else if (status === 10 || (status !== 30 && item_list && item_list.length > 0)) {
+            } else if (status === 10 || status === 40) {
+                //审核失败 可能是敏感信息
+                await this.handleGenerationFailure(task, EX.API_CONTENT_FILTERED[1] as string, msg, currentTime);
+            } else if ((status !== 30 && item_list && item_list.length > 0)) {
                 // 生成完成
                 await this.handleGenerationSuccess(task, item_list, currentTime);
             } else {
                 // 生成失败
                 if(failCode == '2038' || failCode == '2041'){
-                    await this.handleGenerationFailure(task, EX.API_CONTENT_FILTERED[1] as string, failCode, currentTime);
+                    await this.handleGenerationFailure(task, EX.API_CONTENT_FILTERED[1] as string, msg, currentTime);
                 }else{
-                    await this.handleGenerationFailure(task, EX.API_IMAGE_GENERATION_FAILED[1] as string, failCode, currentTime);
+                    await this.handleGenerationFailure(task, EX.API_IMAGE_GENERATION_FAILED[1] as string, msg, currentTime);
                 }
             }
 
@@ -1229,9 +1233,27 @@ export class DatabaseCleanupService {
         const activeTasks = await GenerationTask.find({
             status: { $in: ['processing', 'polling'] }
         });
+
+        // 清理由于之前的 bug 导致的损坏数据（缺少 task_id 的任务）
+        const corruptedTasks = activeTasks.filter(task => !task.task_id);
+        if (corruptedTasks.length > 0) {
+            taskLog(`Cleaning up ${corruptedTasks.length} corrupted tasks missing task_id`);
+            await GenerationTask.deleteMany({ task_id: { $exists: false } });
+            // NeDB deleteMany with $exists: false might not work as expected, 
+            // but we can delete them by their NeDB internal _id if needed.
+            // For now, let's use a more reliable way for NeDB:
+            for (const task of corruptedTasks) {
+                if ((task as any)._id) {
+                    await NeDBManager.remove('generation_tasks', { _id: (task as any)._id });
+                }
+            }
+        }
         
         // 在内存中过滤超时任务（NeDB 不支持 $expr）
         const timeoutTasks = activeTasks.filter(task => {
+            // 确保任务有有效 ID
+            if (!task.task_id) return false;
+            
             const elapsedTime = currentTime - (task.started_at || task.created_at);
             return elapsedTime > (task.task_timeout || 3600); // 默认1小时超时
         });
@@ -1243,10 +1265,12 @@ export class DatabaseCleanupService {
             await GenerationTask.updateMany(
                 { task_id: { $in: timeoutTaskIds } },
                 { 
-                    status: 'failed',
-                    error_message: 'Task timeout',
-                    updated_at: currentTime,
-                    completed_at: currentTime
+                    $set: {
+                        status: 'failed',
+                        error_message: 'Task timeout',
+                        updated_at: currentTime,
+                        completed_at: currentTime
+                    }
                 }
             );
             
@@ -1261,7 +1285,7 @@ export class DatabaseCleanupService {
                 metadata: {
                     total_files: 0,
                     successful_uploads: 0,
-                    fail_reason: 'Task timeout after ' + task.task_timeout + ' seconds'
+                    fail_reason: 'Task timeout after ' + (task.task_timeout || 3600) + ' seconds'
                 },
                 created_at: currentTime,
                 expires_at: currentTime + parseInt(process.env.RESULT_EXPIRE_TIME || '86400'),
@@ -1270,7 +1294,17 @@ export class DatabaseCleanupService {
             }));
             
             if (failedResults.length > 0) {
-                await GenerationResult.insertMany(failedResults);
+                // 逐个插入以防个别任务已存在导致整体失败
+                for (const result of failedResults) {
+                    try {
+                        await GenerationResult.create(result);
+                    } catch (e) {
+                        // 忽略重复记录或其他插入错误，避免中断清理流程
+                        if (!e.message.includes('unique constraint')) {
+                            taskLog(`Failed to create timeout result for ${result.task_id}: ${e.message}`);
+                        }
+                    }
+                }
             }
         }