hello and welcome the the forum,
what makes you think this is a bug?
are you using your own app id?
there is a small difference between the two commands, the paths are not the same.
https://rclone.org/dropbox/#dropbox-for-business
test2:/
test2:
have you read this?
https://forum.rclone.org/t/dropbox-no-members-read/22223/3