Marrying again while being married // The International Beit Din has taken upon itself the mission of freeing agunos, but rabbanim from across the spectrum have warned that their methods violate halachah and endanger klal Yisrael

 https://www.amimagazine.org/2021/07/14/marrying-again-while-being-married/

However, the scholarship its members use to justify their decisions has been determined to be sorely deficient. The IBD has published 13 of its “psakim,” which are available for anyone to read on its website. These “teshuvos” were panned by a host of leading poskim, including Rav Hershel Schachter and Rav Mendel Zilber, who said that these supposed psakim are actually error-laden misreadings and misunderstandings of Rishonim and Acharonim. (See our interview with Rav Hershel Schachter for a more detailed explanation.)