diff --git a/Common/normalization.py b/Common/normalization.py
index e4eb1b9b..f2dfab1a 100644
--- a/Common/normalization.py
+++ b/Common/normalization.py
@@ -131,8 +131,10 @@ def normalize_node_data(self, node_list: list, block_size: int = 1000) -> list:
                         empty_responses = {curie: None for curie in data_chunk}
                         cached_node_norms.update(empty_responses)
                 else:
-                    # the error that is trapped here means that the entire list of nodes didnt get normalized.
+                    # we should never get a legitimate non-200 response from node norm here, just crash with an error
                     error_message = f'Node norm response code: {resp.status_code}'
+                    if resp.status_code == 422:
+                        error_message += f'(curies: {data_chunk})'
                     self.logger.error(error_message)
                     resp.raise_for_status()
 
@@ -367,7 +369,7 @@ def __init__(self,
 
     def normalize_edge_data(self,
                             edge_list: list,
-                            block_size: int = 2500) -> list:
+                            block_size: int = 100) -> list:
         """
         This method calls the EdgeNormalization web service to retrieve information for normalizing edges.