WARNING [3003] Cannot evaluate % options for setting 'string75Cat0Dog25Falcon0HorseCustomAttr' (the User.Country attribute is missing). You should set the User.Country attribute in order to make targeting work properly. Read more: https://configcat.com/docs/advanced/user-object/
INFO [5000] Evaluating 'string75Cat0Dog25Falcon0HorseCustomAttr' for User '{"Identifier":"12345"}'
  Skipping % options because the User.Country attribute is missing.
  Returning 'Chicken'.