The parent search has been fixed, according to December 14, 2022 Scoutbook Updates, so the unit admins should be able to connect you as well. If they haven’t tried since the fix was released, it might be to their advantage to verify it works.
There is also a work-around available, assuming your other connected scout is in the same unit.
A unit admin can go to the unit roster in Scoutbook, scroll down to the Connections Manager at the bottom, then page through to find the grid intersection between you and your scout with whom you are not yet connected. They can create a View only connection there. Then, they go back into the roster, and click on the scout’s name. From there, they can change the connection type to Parent/Guardian.