No navigation controls on KK s61 Mk1

Hi

I have an s61 Mk1 and KK3.2 I've not been a regular user of KK with reaper but until VERY recently, when I did crank it up all the lights came on and I could scroll through presets and instruments from the keyboard rather than do it with the mouse. Now all that's gone! The keys work and the sounds are there but the navigation and transport buttons are all dark. I have tried all the fixes I can find but no good. Has something happened recently with an update? I recently upgraded to NA2.

Thanks

Ross