Since the search bar doesn't work "Error: unable to load the main template", I have no idea if this has been noticed before.
On the b25h, If you select bombs in the pilot position, move to a gunner's position, and return to the pilots position, it will have the 75mm gun selected instead of the bombs. This has messed me up a few times when i had the bombs selected but ended up firing the 75mm gun instead.