diff --git a/confluent_server/confluent/core.py b/confluent_server/confluent/core.py
index fefa75ab..ee62c5e8 100644
--- a/confluent_server/confluent/core.py
+++ b/confluent_server/confluent/core.py
@@ -1051,6 +1051,8 @@ def dispatch_request(nodes, manager, element, configmanager, inputdata,
             rsp = exc.deserialize_exc(rsp)
         if isinstance(rsp, Exception):
             raise rsp
+        if not rsp:
+            raise Exception('Error in cross-collective serialize/deserialze, see remote logs')
         yield rsp