Rekordbox Lighting- Panther 40 Moving Head Issue

Hi.

I've recently purchased two Beamz Panther 40 Spot moving heads and have issues getting Rekordbox Lighting to control them. I current use a Chavuet Gig Bar Move which works well with Rekordbox. I've added the two new Beamz fixtures to the venue, on 65 & 78 DMX address, and set them Moving Head 1 & 4. No light comes from them, and only small jerky movements when DMX'd to the fixture addresses. I've tried 9 channel and 11 channel mode, no difference. I'm on Rekordbox 7. See screen shot above. 

Any tips?

Cheers,