diff --git a/backend/app/routers/data.py b/backend/app/routers/data.py
index c4463ef..699e478 100644
--- a/backend/app/routers/data.py
+++ b/backend/app/routers/data.py
@@ -35,7 +35,6 @@
     BOOK_IMPORT_FIELDS,
     PREDEFINED_MAPPINGS,
     compute_schema_fingerprint,
-    delete_parsed_upload,
     execute_import,
     get_predefined_mapping,
     load_parsed_upload,
@@ -323,8 +322,7 @@ async def event_generator():
                 final_error = 'error.importExecutionFailed'
                 yield f"data: {json.dumps({'event': 'error', 'message': 'error.importExecutionFailed'})}\n\n"
             finally:
-                if completed and import_failed_rows == 0 and final_error is None:
-                    delete_parsed_upload(body.file_id, current_user.id)
+                pass  # import file is cleaned up by the periodic temp file job
 
     return StreamingResponse(
         event_generator(),
diff --git a/backend/app/services/data_import.py b/backend/app/services/data_import.py
index 9aef8eb..2516669 100644
--- a/backend/app/services/data_import.py
+++ b/backend/app/services/data_import.py
@@ -838,7 +838,7 @@ async def execute_import(
             "tags": {"source": "Bookshelves", "transform": None},
             "notes": {
                 "source": "My Review", 
-                "transform": "value.replace('<br/>', '\n') if value else None",
+                "transform": "re.sub(r'<br\\s*/?>', '\\n', value, flags=re.IGNORECASE) if value else None",
             },
             "blurb": {"source": "", "transform": None},
             "rating": {
@@ -885,7 +885,7 @@ def get_predefined_mapping(mapping_id: int) -> dict[str, object] | None:
     return None
 
 
-def cleanup_temp_files(max_age_hours: int = 24) -> None:
+def cleanup_temp_files(max_age_hours: int = 48) -> None:
     """Delete temporary import files older than *max_age_hours*.
 
     Args: