Twice now since the restart of server (1-28-2024), a BG was formed, and then suddenly, all the information regarding the BG, /bg groups, /who BG did not show any information, and the BG leader had to reform to create a NEW battlegroup. People could still communicate in the BG, but again, couldn't see who was in there or anything else.
--Note--
BG leader said it seemed to occur when they zoned.