The simple answer is that the Scoutbook system previously did not enforce the policy position that everyone with leader-level access be registered as a leader, but now it does. The BSA purchased Scoutbook some time ago now from a third-party who had initially developed it as a non-BSA-supported unit management tool. Since the BSA took it over, they have been making a string of changes to bring it more in line with the official policies. This has resulted in some processes that previously worked “breaking” (or, viewed from another perspective, some bugs in the system getting squashed). I’m not always a giant fan of the changes made, but I can’t fault them for bringing officially-supported software in line with the official policies.