We've got an Apple TV 4. Everything's been working fine for the last six months, and nothing has changed in terms of setup. However this morning the touchpad on the Siri remote has stopped working properly. Swiping up or down does nothing 90% of the time, and when it does work it jumps through the menus way too fast. Remote is fully charged, tried it directly in front of the Apple TV, etc. Could the remote be defective? Has anyone else run into this issue?