That will explain it then. I thought I was going mad and was missing something obvious. I bought these plugs as I am slowly moving OFF SmartThings and Harmony Remote integrates with SmartThings or Hue ... and I have Hue Hub too ... so decided to buy Philips Plugs so I could use them with Harmony Remote and as well as that control them with Hubitat/WebCore
I have just installed it. OMG that was really easy. The instructions are clear as anything and I just followed each one and everything just worked. I could import all lights (and swap the Hue lights from the standard installation to this CoCo one) but instead I just imported the Plugs. The integration works perfectly and it runs perfectly alongside my standard Hue/Hubitat integration. Thank you at9 !!