diff --git a/mlair/data_handler/data_handler_wrf_chem.py b/mlair/data_handler/data_handler_wrf_chem.py
index c8effffd5944071852610850ec36921ae2149fbe..1da8614338f8f6497a344b8194c08fe4e44080de 100644
--- a/mlair/data_handler/data_handler_wrf_chem.py
+++ b/mlair/data_handler/data_handler_wrf_chem.py
@@ -131,7 +131,7 @@ class BaseWrfChemDataLoader:
     def dataset_search_str(self):
         if (self.start_time is None) and (self.end_time is None):
             path_list = os.path.join(self.data_path, self.common_file_starter + '*')
-            logging.info(f"Reading file(s): {list(path_list)}")
+            logging.info(f"Reading file(s): {path_list}")
             return path_list
         elif (self.start_time is not None) and (self.end_time is not None):
             path_list = set()
@@ -140,8 +140,9 @@ class BaseWrfChemDataLoader:
                                                             self.common_file_starter) + '*' + day.strftime(
                     self.date_format_of_nc_file) + '*'
                                                ))[0])
-            logging.info(f"Reading file(s): {list(path_list)}")
-            return list(path_list)
+            path_list = sorted(list(path_list))
+            logging.info(f"Reading file(s): {path_list}")
+            return path_list
         else:
             raise ValueError(f"`start_time' and `end_time' must both be given or None.")
 
@@ -526,8 +527,8 @@ class DataHandlerSingleGridColumn(DataHandlerSingleStation):
                                                    rechunk_values=self.rechunk_values,
                                                    variables=self.variables,
                                                    z_coord_selector=self._joint_z_coord_selector,
-                                                   start_time=self.start,
-                                                   end_time=self.end,
+                                                   # start_time=self.start,
+                                                   # end_time=self.end,
                                                    date_format_of_nc_file=self.date_format_of_nc_file
                                                    )
         self.__loader = loader