Upnp only picking up one sensor

Hi folks,
Welcome to my first post :grin:
I have the following in my configuration.yaml

upnp:
sensors: true
local_ip: 192.168.1.1

My router is a Draytek Vigor2862ac and prior to 0.105 coming out I did a fresh pi hassio install, beforehand I picked up approx 6 sensor activities but now when I enable the upnp integration I only pick up one sensor (packets_sent).

Any ideas? do I just need to a few restarts or let it settle down over time?
I only added the info in to configuration.yaml after I had installed the upnp integration and did a bit looking around for help.
Thanks

EDIT: it seems a bit of time has helped and I now have 5 sensors showing, although 4 of them say unavailable. If familiar with vigor routers both checkboxes in the upnp page are checked.