If you have an Alexa-powered device, you'd be forgiven for thinking it was haunted: users have been complaining that their devices would laugh randomly or simply refuse to do what they were asked. Is your smart speaker going to murder you in your sleep? Thankfully, no. Amazon has confirmed that it's aware of the problem and is "working to fix it." The company hasn't said what went wrong, but it's notable that this isn't a case of accidentally triggering the voice assistant -- the laughter has kicked in without triggering the signature blue light that accompanies responses on Echo speakers and other Alexa devices.