Alexa not discovering new emulated hue devices

I have been using emulated hue with my 2 amazon echo devices for some time. It has abut 10 entities which are working fine even now but the problem is that if i add a new entity to this list, it is not discovered by alexa. I have checked all the troubleshooting methods in the guide like checking for returns from port 80 and all, its all working as intended, I hope some one would help. This is my config.

emulated_hue:
  host_ip: 192.168.1.2
  listen_port: 80
  expose_by_default: false
  entities:
    fan.living_room_fan:
      name: "fan123"
      hidden: false    
    input_boolean.notify_bell:
      name: "Sn Bell"
      hidden: false    
    input_boolean.notify_su_bell:
      name: "Sn Bell"
      hidden: false