DDJ-RB headphone mix cue volume issue

Hi all,

Done a bit of digging on this issue and I think there are some people with similar issues but no resolution.  

The issue is all to do with the cue volume options. Probably best if I explain it in a scenario:

Deck 1 is playing a track and I want to mix Deck 2 into this.  Usually I would cue deck 2 in the headphones to get my starting point then I would click master cue and gradually bring the volume up so I can hear how it fits.

With the RB as soon as I click cue master is adds the master volume in the headphones at full volume so I can no longer hear the deck 2 track in the headphones. 

It seems to be missing the transition from cue to master, but I can't see why or how you can use the cue buttons to mix in the headphones. 

Hopefully this makes sense. If anyone has any ideas they would be very much appreciated!