I have a Tesco Hudl 2 which runs on Android 5.1 Lollipop. Up until a few days ago, it responded to the square button by showing all of the apps which are running. This allowed me to close apps by swiping them away. However, now it responds to the square button by showing a message saying "Your recent screens appear here" whether there are any apps running or not.
I have tried restarting it but that didn't help.
Has anyone any suggestions?