Hue On/Off plug not working 'individually'

I have two On/Off plug by OSRAM connected via the Philips Hue integration. Both plugs are part of the Hue Room ‘Kitchen’
In HA the plugs appear as plug1, plug2 and also the kitchen room/group appears.
I can turn both the plugs on and off simultaneously by switching the ‘kitchen’
But when I try to target them individually this doesn’t work and they are unavailable.
Is there a way to target those plugs individually?