Log error when retrieving EthereumTx

safe_transaction_service/history/services/index_service.py

@@ -332,6 +332,12 @@ def txs_create_or_update_from_tx_hashes(
                 ethereum_tx.update_with_block_and_receipt(ethereum_block, tx_receipt)
                 ethereum_txs_dict[ethereum_tx.tx_hash] = ethereum_tx
         logger.debug("Blocks, transactions and receipts were inserted")
+
+        # TODO Remove, this is meant to detect a bug on production
+        for tx_hash, ethereum_tx in ethereum_txs_dict.items():
+            if not ethereum_tx:
+                logger.error("Unexpected missing tx with tx-hash=%s", tx_hash)
+
         return list(ethereum_txs_dict.values())
 
     @transaction.atomic