(I am a lay person but...) It seems to me that this article explains it quite clearly: https://motherboard.vice.com/en_us/article/mbkqyy/the-results-of-a-1000

(I am a lay person but...) It seems to me that this article explains it quite clearly: https://motherboard.vice.com/en_us/article/mbkqyy/the-results-of-a-100000-person-quantum-experiment-seem-to-violate-einsteins-theory-of-local-realism https://motherboard.vice.com/en_us/article/mbkqyy/the-result... However it is not a big deal, the result is the same since 1972. It has little to do with the SR or GR. It is about some aspect of the quantum theories that Einstein has difficulty with because it was in contradiction with his own understanding of what properties, space and time have.