I just did 14 eggs that were laid in the past 2-3 days. Steamed in the ninja and all of them peeling easily so far. Some I just crack and the peels came off in one big piece. And I don't peel them right away. I prefer not to.
eta: the dark green circle is due to overcooking. It can happen with any cooking method and the best way to avoid it is to not overcook.