The value of cloud owner for VNF-Macro-Modify action is hard-coded in maridb-galera (table northbound_request_ref_lookup) and set to 'k8scloudowner4'. As a result there is no possibility to execute that action for vnf instantiated in deferment cloud region  with different cloud owner than the hard-coded one. As a solution the value should be updated to 'DEFAULT'. Screens attached to present the problem.