There is a bug in Scoutbook, where a Den Leader with a Den Admin role isn’t automatically connected to new scouts in their den.
This has been reported in previous posts by others, but the answer is always “there’s a glitch where you have to update the Den Leader’s admin role to fix this”.
This is a formal request to fix that bug, such that when a new scout is added to a den, the Den Admins of that den get automatically connected to that scout.