Reverse order of messages_df if order is DESC

src/backend/base/langflow/memory.py

@@ -39,7 +39,11 @@ def get_messages(
     )
 
     records: list[Record] = []
-
+    # messages_df has a timestamp
+    # it gets the last 5 messages, for example
+    # but now they are ordered from most recent to least recent
+    # so we need to reverse the order
+    messages_df = messages_df[::-1] if order == "DESC" else messages_df
     for row in messages_df.itertuples():
         record = Record(
             data={