I have a scout who is also a sea scout. Every time I enter a MB requirement, it defaults back to his ship, so I have to click his name, troop, advancement, then mb again. I have to do this for every single MB requirement. His parents say it defaults to Ship for them, too. I have no position in the Ship, though.
I haven’t entered any rank advancement requirements for him recently because he is an Eagle Scout, so I am not sure if it happens there, too, or just merit badge requirements. It makes entering MB requirements for him very time consuming.