this is not a fault or a bug this is apple trying to create an illegal monopoly on chargers for laptops basically in the someone update apple have put a setting to stop your computer charging unless it is connected to an official made by apple charger which costs 3 times the price of a third party charger and is built to break within 2 years. So essentially you will have to keep replacing your charger every 2 years or less at apples over inflated charger prices, even if you divert back to the old operating system it will still not charge on anything apart from a made by apple charger its basically looking to eliminate all competition and create a monopoly win the market which while illegal I am sure their team of lawyers are experts at helping apple circumnavigate laws to fuel the greed of those in charge.