I have the same problem when using my Roku Voice Remote with my 4K Dolby Vision stick. The remote, mostly when pressing the reduce volume button, decides to increase the volume at a ridiculous speed to thoroughly unaccceptable volume levels. It ignores any attempt to reduce the volume, it will just increase it when the lower volume button is pressed. After a few seconds of this highly irritating behaviour, it returns to working as it should. I had this behaviour on my last 4K Voice Remote when using it with the same 4K Dolby Vision stick and replaced the remote because of this. It cannot be a faulty volume rocker switch, as both remotes have the same problem. I suspect shoddily written software from Roku that needs to be resolved in a firmeare update for the voice remote that comes with the 4K Dolby Vision stick.
Thank you for posting here in the Roku Community, @HPDeskjet!
We understand you're having issues with the volume levels and the button functioning for your Roku remote, and we'd be more than happy to suggest some troubleshooting steps to help you.
Reboot your Roku device - navigate to your Settings > System > Power (skip if unavailable) > System restart
Reset your Roku Voice Remote:
Nevertheless, no worries! We'd be more than happy to forward your feedback to the team.
Best regards,
Carly
Thank you for posting here in the Roku Community, @HPDeskjet!
We understand you're having issues with the volume levels and the button functioning for your Roku remote, and we'd be more than happy to suggest some troubleshooting steps to help you.
Reboot your Roku device - navigate to your Settings > System > Power (skip if unavailable) > System restart
Reset your Roku Voice Remote:
Nevertheless, no worries! We'd be more than happy to forward your feedback to the team.
Best regards,
Carly