diff --git a/clearml_serving/serving/model_request_processor.py b/clearml_serving/serving/model_request_processor.py
index 49de499..45deb29 100644
--- a/clearml_serving/serving/model_request_processor.py
+++ b/clearml_serving/serving/model_request_processor.py
@@ -388,6 +388,8 @@ class ModelRequestProcessor(object):
             return False
         self._endpoints.pop(endpoint_url, None)
         self._remove_registered_input_model(endpoint_url)
+        self._engine_processor_lookup.pop(endpoint_url, None)
+        gc.collect()
         return True
 
     def add_canary_endpoint(
diff --git a/clearml_serving/serving/preprocess_service.py b/clearml_serving/serving/preprocess_service.py
index 81d4926..efa33a1 100644
--- a/clearml_serving/serving/preprocess_service.py
+++ b/clearml_serving/serving/preprocess_service.py
@@ -94,7 +94,10 @@ class BasePreprocessRequest(object):
             def __del__(self):
                 super_ = super(PreprocessDelWrapper, self)
                 if callable(getattr(super_, "unload", None)):
-                    super_.unload()
+                    try:
+                        super_.unload()
+                    except Exception as ex:
+                        print("Failed unloading model: {}".format(ex))
                 if callable(getattr(super_, "__del__", None)):
                     super_.__del__()