diff --git a/api/apps/services/dataset_api_service.py b/api/apps/services/dataset_api_service.py
index 41dc55e2fc..72b4f4f938 100644
--- a/api/apps/services/dataset_api_service.py
+++ b/api/apps/services/dataset_api_service.py
@@ -781,7 +781,11 @@ def get_ingestion_log(dataset_id: str, tenant_id: str, log_id: str):
 
     from api.db.services.pipeline_operation_log_service import PipelineOperationLogService
 
-    fields = PipelineOperationLogService.get_dataset_logs_fields()
+    # Return the full record (including `dsl`) so the front-end dataflow-result
+    # page can render the pipeline timeline and chunks. The file-level field set
+    # is a superset of the dataset-level fields, so it is valid for both
+    # dataset-level (graph/raptor/mindmap) and per-file logs.
+    fields = PipelineOperationLogService.get_file_logs_fields()
     log = PipelineOperationLogService.model.select(*fields).where((PipelineOperationLogService.model.id == log_id) & (PipelineOperationLogService.model.kb_id == dataset_id)).first()
     if not log:
         return False, "Log not found"
diff --git a/internal/service/dataset.go b/internal/service/dataset.go
index 961324aae5..65f80bc529 100644
--- a/internal/service/dataset.go
+++ b/internal/service/dataset.go
@@ -1172,8 +1172,12 @@ func (s *DatasetService) ListIngestionLogs(datasetID, userID string, page, pageS
 	}, common.CodeSuccess, nil
 }
 
-// GetIngestionLog returns a single dataset-level ingestion log, mirroring
-// dataset_api_service.get_ingestion_log.
+// GetIngestionLog returns a single ingestion log, mirroring
+// dataset_api_service.get_ingestion_log. It returns the full record (including
+// the `dsl`, `document_id`, `parser_id`, etc.) so that the front-end
+// dataflow-result page can render the pipeline timeline and chunks. The
+// file-level converter is a superset of the dataset-level fields, so it is
+// correct for both dataset-level (graph/raptor/mindmap) and per-file logs.
 func (s *DatasetService) GetIngestionLog(datasetID, userID, logID string) (map[string]interface{}, common.ErrorCode, error) {
 	datasetID = strings.TrimSpace(datasetID)
 	if datasetID == "" {
@@ -1192,7 +1196,7 @@ func (s *DatasetService) GetIngestionLog(datasetID, userID, logID string) (map[s
 		return nil, common.CodeServerError, errors.New("Database operation failed")
 	}
 
-	return datasetIngestionLogToMap(log), common.CodeSuccess, nil
+	return fileIngestionLogToMap(log), common.CodeSuccess, nil
 }
 
 func datasetIngestionLogToMap(log *entity.PipelineOperationLog) map[string]interface{} {