Cant get Alexa to see lightwave rf via rfxcomm

Hi all,
Have the RFXCOMM and OpenHab playing nice, Have added [ “Lighting” ] in the .items for my dimmers though when I ask Alexa to search for new devices - she does not pick them up though she still see’s my Sonoff devices just fine.

Dimmer Living room light “Living Room Dimmer [%d %%]” [ “Lighting” ]
{ rfxcom=">010301.1:LIGHTING5.LIGHTWAVERF:DimmingLevel" }

Dimmer works fine from Paper UI etc.

Any idea’s - I’m lost!