diff --git a/furniture-3d-system/src/server/services/oa-board-sync.service.ts b/furniture-3d-system/src/server/services/oa-board-sync.service.ts
index dfd8d3e4..305c916d 100644
--- a/furniture-3d-system/src/server/services/oa-board-sync.service.ts
+++ b/furniture-3d-system/src/server/services/oa-board-sync.service.ts
@@ -1161,13 +1161,18 @@ function isNewerSourceTaskRow(nextRow: SourceTaskRow, currentRow: SourceTaskRow)
   if (nextValue.createdAt !== currentValue.createdAt) {
     return nextValue.createdAt > currentValue.createdAt
   }
+  // 同一任务的状态变更沿用原创建时间，源表自增 ID 才能区分最新日志。
+  // 例如退回后写入的 CANCELED 必须覆盖此前的 RUNNING。
+  if (nextValue.rowId !== currentValue.rowId) {
+    return nextValue.rowId > currentValue.rowId
+  }
   if (nextValue.statusPriority !== currentValue.statusPriority) {
     return nextValue.statusPriority > currentValue.statusPriority
   }
   if (nextValue.resultPriority !== currentValue.resultPriority) {
     return nextValue.resultPriority > currentValue.resultPriority
   }
-  return nextValue.rowId > currentValue.rowId
+  return false
 }
 
 function buildTaskRecordsWithMappings(