I am on my second 4K + remote and still having the same issue with the voice feature not working. When the mic button is pressed, the screen returns to the channel screen? Software is up to date. Any ideas on how to fix?
First thing I would try is to restart the Roku.
These things are just special purpose computers. Like their big brothers sometimes clearing things out by restarting them can correct problems.
(For Roku TV users reading this: if you have "Fast TV start" enabled, turning it off and back on just puts it into and out of a standby state and does NOT give you a complete restart - use the method below.)
Depending on your Roku model you'll find the "System restart" option under "Settings > System > Power", or on models without a Power option, under "Settings > System".
If a restart doesn't do it, or if you don't have sufficient control with the remote to navigate the Roku menus, you can also restart by pulling the power plug to the Roku for a few seconds then plugging it back in and waiting for it to restart.
Thank you, will give that a try.