Remote Buddy "pre-renders" menu contents for better performance. That means that, for file/folder items, Remote Buddy will only inspect the file/folder element when you _enter_ the respective menu. And really only then. It doesn't do it again when you descend deeper into the menu and then navigate up to the level of the previous menu containing these items.

Therefore, when you attach a drive to your Mac that you're referencing from a menu in Remote Buddy, in order for Remote Buddy to look at that menu items again, please navigate out of the respective menu and then enter it again. That should always work.

Best regards, 
Felix Schwarz