diff --git a/src/python_client/sensiml/datamanager/knowledgepack.py b/src/python_client/sensiml/datamanager/knowledgepack.py
index 3cac49b5..506bc895 100644
--- a/src/python_client/sensiml/datamanager/knowledgepack.py
+++ b/src/python_client/sensiml/datamanager/knowledgepack.py
@@ -1018,12 +1018,12 @@ def initialize_from_dict(self, init_dict):
         self._model_index = init_dict.get("model_index", None)
         self._execution_time = init_dict.get("execution_time", None)
 
-        self._class_map = init_dict["class_map"]
-        self._pipeline_summary = init_dict["pipeline_summary"]
-        self._query_summary = init_dict["query_summary"]
-        self._feature_summary = init_dict["feature_summary"]
-        self._transform_summary = init_dict["transform_summary"]
-        self._sensor_summary = init_dict["sensor_summary"]
+        self._class_map = init_dict.get("class_map")
+        self._pipeline_summary = init_dict.get("pipeline_summary")
+        self._query_summary = init_dict.get("query_summary", None)
+        self._feature_summary = init_dict.get("feature_summary")
+        self._transform_summary = init_dict.get("transform_summary")
+        self._sensor_summary = init_dict.get("sensor_summary")
 
         self._neuron_array = (
             init_dict.get("neuron_array")
diff --git a/src/server/datamanager/serializers/knowledgepack.py b/src/server/datamanager/serializers/knowledgepack.py
index 2b16e490..5bcc25e6 100644
--- a/src/server/datamanager/serializers/knowledgepack.py
+++ b/src/server/datamanager/serializers/knowledgepack.py
@@ -341,6 +341,11 @@ def get_model_configuration(self, obj):
 
     def get_query_summary(self, obj):
 
+        empty_dict = {}
+
+        if not hasattr(obj, "query_summary") or not obj.query_summary:
+            return empty_dict  # for backward compatibility
+
         obj.query_summary.pop("segment_info", None)
 
         if isinstance(obj.query_summary["segmenter"], int):