The first experimental paper by BESIII collaboration (motivated under new mirror oscillation model) has just been published: Search for invisible decays of the Λ baryon. It was the first direct test of my idea on neutral hadron oscillations. It gives an upper limit of the invisible decay branching fraction for the Λ baryon: <7.4×10−5 , which is consistent with my model. Unfortunately, it is not sensitive enough yet to reach the level of my prediction in the new model: 4.4×10−7. I hope that more experimental works will be coming on invisible decays of other hadrons like K0L and K0S. I wish that people in the business of neutron lifetime measurements could have done much more convincing tests earlier.