With my new Neo QLED 4K (2021) QN85 with the solar smart remote, I am unable to control the volume or mute my connected Sony AV Receiver STR-DE698. The receiver and the TV are connected via Optical cable and when I press the volume button to mute or press the button up or down to change volume, the image of the Optical device appears on the left side of the screen. My other remotes (Apple TV, Harmony Hub, Sony Receiver, and previous Sharp TV) all previously connected via optical cable do not have this problem. On the learn screen for the remote the buttons function correctly (although do nothing to change the volume)).

Is there some way to teach the TV to recognize the Volume commands from the Samsung remote? What else can I do to prevent using yet another remote?