diff --git a/cli/src/pcluster/config/mappings.py b/cli/src/pcluster/config/mappings.py
index 6a5645076a..75a60e8073 100644
--- a/cli/src/pcluster/config/mappings.py
+++ b/cli/src/pcluster/config/mappings.py
@@ -1032,7 +1032,7 @@
         "type": JsonCfnParam,
         "default": {},
         "cfn_param_mapping": "InstanceTypesData",
-        "update_policy": UpdatePolicy.SUPPORTED
+        "update_policy": UpdatePolicy.IGNORED
     }),
 ]
 
diff --git a/cli/src/pcluster/config/pcluster_config.py b/cli/src/pcluster/config/pcluster_config.py
index a5e730b08e..3d81025952 100644
--- a/cli/src/pcluster/config/pcluster_config.py
+++ b/cli/src/pcluster/config/pcluster_config.py
@@ -101,8 +101,9 @@ def __init__(
             self.__init_sections_from_cfn(cluster_name)
         else:
             self.__init_sections_from_file(cluster_label, self.config_parser, fail_on_file_absence)
-            # Load instance types data if present in config file
-            self.__init_additional_instance_types_data()
+
+        # Load instance types data if available
+        self.__init_additional_instance_types_data()
 
         self.__autorefresh = auto_refresh  # Initialization completed