Roku Express (3900 series) -> HDMI(arc) on Samsung TV -> optical port Zvox soundbar. Volume and power controls don't seem to work well when battery level pop up appears (which is way too often)
Steps taken:
1) Rebooted Roku, TV, Soundbar.
2) Factory reset Roku, Soundbar. Re-paired Roku remote
tried to do issue tracker capture 8W-517-236 / 8W-517-238
running 11.5.0 4312-CR