Last Roku update broke volume control on my AV Receiver

The volume buttons on my Roku remote and my TV remote no longer function as desired. Instead, when pressed a crossed-out speaker displays. After having checked system updates, this problem surfaced after an update on 5-10-23.

The volume controls for my AV receiver still work, but this is a decent inconvenience. All remotes had functioned as desired previously, and no other settings have been changed. The AV receiver is still set to its HDMI ARC output as is the TV. Obviously, the buttons still work for the 2 remotes in question, but it certainly seems the software no longer behaves appropriately.