"johnmarsden" wrote:
Is the up button supposed to bring you back?
Generally speaking - yes, for historical reasons.
There was a time back then, when Roku remotes
did not have a dedicated "Back" button and so the "Up" button was doing the job. So that's the default behavior of many of the ro-components. For some (but not all) of them, a method to optionally disable the behavior was added later.