It's likely that impurities in the bulk of the sample are why we aren't seeing the Meissner effect. Seeing super conductivity though is extremely promising. We

It's likely that impurities in the bulk of the sample are why we aren't seeing the Meissner effect. Seeing super conductivity though is extremely promising. We've seen a sample be super conductors at 110k ambient pressure, diamagnetism, and (unconfirmed) flux pinning. So it's likely there's something here, but right now the main hurdle is synthesis. It's difficult to make and there's no clear path to consistency, purity or scale.