TV volume changes on its own with Roku 4K streaming stick

Hi Eliric,

Greetings and welcome to the Roku Community!

We really appreciate for taking the time to provide these important details. We'll forward this to the appropriate Roku team for further investigation. An update here in this thread will be posted once we hear back from our team based on the observation of this issue.

For the time being, have you tried some troubleshooting steps, such as performing a system restart, unplugging the Roku device, and unpairing the remote? If not, keep us posted so we'll be able to provide those steps for you.

All the best,
Kash