diff --git a/apps/worker/worker_app/tasks/generation.py b/apps/worker/worker_app/tasks/generation.py
index 1ba072f71..94e492205 100644
--- a/apps/worker/worker_app/tasks/generation.py
+++ b/apps/worker/worker_app/tasks/generation.py
@@ -1051,20 +1051,15 @@ def generate_video(self, task_id: str) -> dict:
                         )
                         if _meta_model:
                             meta = dict(_meta_model.extra_meta or {})
+                            # #2024/P0 finalize-400: 直接展开 _precompute_render_metadata 返回的
+                            # 完整 dict（含 file_url/fingerprint_dict/fingerprint_chunks/is_duplicate
+                            # /duplicate_of/...），避免手写字段白名单漏传字段导致 finalize 读不到数据。
                             meta["rendered_output"] = {
+                                **dict(rendered_output or {}),
+                                # file_url/duration 由外层调用方拿到的实际上传结果，优先覆盖预计算值
                                 "file_url": file_url,
                                 "file_size": file_size,
                                 "duration": duration,
-                                "width": rendered_output.get("width", 1280),
-                                "height": rendered_output.get("height", 720),
-                                "fps": rendered_output.get("fps", 25.0),
-                                "name": rendered_output.get("name", ""),
-                                "thumbnail_url": rendered_output.get("thumbnail_url", ""),
-                                "mode": rendered_output.get("mode", editing_mode.value),
-                                "fingerprint_dict": rendered_output.get("fingerprint_dict"),
-                                "batch_id": batch_id,
-                                "project_id": project_id,
-                                "user_id": user_id,
                             }
                             _meta_model.extra_meta = meta
                             _finalize_meta_session.commit()
diff --git a/packages/adapters/sqlalchemy_impl/generation_task_repository.py b/packages/adapters/sqlalchemy_impl/generation_task_repository.py
index 433aaa829..1c3a65ba8 100755
--- a/packages/adapters/sqlalchemy_impl/generation_task_repository.py
+++ b/packages/adapters/sqlalchemy_impl/generation_task_repository.py
@@ -43,6 +43,7 @@ def _to_domain(model: GenerationTaskModel) -> GenerationTask:
         output_height=getattr(model, "output_height", 720) or 720,
         cover_url=getattr(model, "cover_url", "") or "",
         title_config=dict(getattr(model, "title_config", {}) or {}),
+        extra_meta=dict(getattr(model, "extra_meta", {}) or {}),
         logs=model.logs or "[]",
         created_at=model.created_at,
         updated_at=model.updated_at,
@@ -88,6 +89,7 @@ class SQLAlchemyGenerationTaskRepository:
             output_height=task.output_height,
             cover_url=task.cover_url or "",
             title_config=dict(task.title_config) if task.title_config else {},
+            extra_meta=dict(task.extra_meta) if task.extra_meta else {},
             logs=task.logs,
             created_at=task.created_at,
             updated_at=task.updated_at,
@@ -322,6 +324,7 @@ class SQLAlchemyGenerationTaskRepository:
         model.output_height = task.output_height
         model.cover_url = task.cover_url or ""
         model.title_config = dict(task.title_config) if task.title_config else {}
+        model.extra_meta = dict(task.extra_meta) if task.extra_meta else {}
         model.logs = task.logs
         self.session.commit()
         return task
diff --git a/packages/application/generated_video_finalize.py b/packages/application/generated_video_finalize.py
index 2ab79e99b..6398d2614 100644
--- a/packages/application/generated_video_finalize.py
+++ b/packages/application/generated_video_finalize.py
@@ -52,6 +52,18 @@ class RenderedOutput:
     def from_dict(cls, data: dict[str, Any]) -> "RenderedOutput":
         if not isinstance(data, dict):
             raise ValueError("rendered_output must be a dict")
+        # fingerprint_chunks 历史上有两种位置：
+        #   1) 顶层 ``fingerprint_chunks``（由 compute_render_fingerprint_and_dedup 直接返回）
+        #   2) 嵌套在 ``fingerprint_dict["chunks"]``（VideoFingerprint.to_dict() 序列化的结构）
+        # 顶层优先；顶层为空时回退到嵌套位置，兼容旧数据。
+        fp_dict = data.get("fingerprint_dict") or {}
+        chunks_raw = data.get("fingerprint_chunks")
+        if not chunks_raw and isinstance(fp_dict, dict):
+            chunks_raw = fp_dict.get("chunks")
+        # md5 同样可能在顶层或嵌套在 fingerprint_dict 内（历史数据兼容）
+        md5_value = data.get("video_fingerprint_md5")
+        if not md5_value and isinstance(fp_dict, dict):
+            md5_value = fp_dict.get("md5")
         return cls(
             file_url=str(data.get("file_url") or ""),
             file_size=int(data.get("file_size") or 0),
@@ -65,14 +77,14 @@ class RenderedOutput:
             batch_id=str(data.get("batch_id") or ""),
             project_id=str(data.get("project_id") or ""),
             user_id=str(data.get("user_id") or ""),
-            fingerprint_dict=data.get("fingerprint_dict"),
-            fingerprint_chunks=data.get("fingerprint_chunks"),
+            fingerprint_dict=fp_dict or None,
+            fingerprint_chunks=chunks_raw if isinstance(chunks_raw, list) else None,
             is_duplicate=bool(data.get("is_duplicate", False)),
             duplicate_of=data.get("duplicate_of"),
             duplicate_rate=_safe_float(data.get("duplicate_rate")),
             match_count=_safe_int(data.get("match_count")),
             visual_similarity=_safe_float(data.get("visual_similarity")),
-            video_fingerprint_md5=str(data.get("video_fingerprint_md5") or ""),
+            video_fingerprint_md5=str(md5_value or ""),
         )