I have two Roku Streaming Sticks and one Roku Express. All three with voice remotes. The remotes for the express and one of the steaming sticks stopped working at the same time. The other streaming stick remote still works. I have changed the batteries in both remotes twice with no help. They are both still dead. I can still control both devices with my phone app. I can't imagine that both remotes would fail simultaneously. Am I missing some problem common to both?