diff --git a/composer/utils/object_store/mlflow_object_store.py b/composer/utils/object_store/mlflow_object_store.py
index 6a6655fba8..e1d3df8d61 100644
--- a/composer/utils/object_store/mlflow_object_store.py
+++ b/composer/utils/object_store/mlflow_object_store.py
@@ -517,13 +517,17 @@ def _get_artifact_info(self, object_name):
         Returns:
             Optional[FileInfo]: The :class:`~mlflow.entities.FileInfo` for the object, or None if it does not exist.
         """
+        from mlflow.exceptions import MlflowException
+        
         # MLflow doesn't support info for a singleton artifact, so we need to list all artifacts in the
         # parent path and find the one with the matching name.
         artifact_path = self.get_artifact_path(object_name)
         artifact_dir = os.path.dirname(artifact_path)
-        artifacts = self._mlflow_client.list_artifacts(self.run_id, artifact_dir)
-        for artifact in artifacts:
-            if not artifact.is_dir and artifact.path == artifact_path:
-                return artifact
 
-        return None
+        try:
+            artifacts = self._mlflow_client.list_artifacts(self.run_id, artifact_dir)
+            for artifact in artifacts:
+                if not artifact.is_dir and artifact.path == artifact_path:
+                    return artifact
+        except MlflowException as e:
+            _wrap_mlflow_exceptions(object_name, e)
diff --git a/composer/utils/object_store/uc_object_store.py b/composer/utils/object_store/uc_object_store.py
index b7801d9757..5516c4123f 100644
--- a/composer/utils/object_store/uc_object_store.py
+++ b/composer/utils/object_store/uc_object_store.py
@@ -157,8 +157,11 @@ def upload_object(
         """
         # remove unused variable
         del callback
-        with open(filename, 'rb') as f:
-            self.client.files.upload(self._get_object_path(object_name), f)
+        try:
+            with open(filename, 'rb') as f:
+                self.client.files.upload(self._get_object_path(object_name), f)
+        except Exception as e:
+            _wrap_errors(self.get_uri(object_name), e)
 
     def download_object(
         self,
@@ -192,7 +195,6 @@ def download_object(
         tmp_path = str(filename) + f'{uuid.uuid4()}.tmp'
 
         try:
-
             try:
                 contents = self.client.files.download(self._get_object_path(object_name)).contents
                 assert contents is not None