XDJ RX3 connections problem with rmx 1000

Hello everyone!

I'm trying to connect my XDJ RX3 to my RMX 1000, until now I had a different set-up, and I was connecting my DJM 850 via Send/Return to the RMX 1000, setting the volume of the RMX1000 in the Send/Return Option and everything worked perfectly. 

But with my new XDJ RX3 I used the Master2 output with RCA to the Input of the RMX 1000, and then I used Jacks output from the RMX to the speakers. All with the RMX using the Master Audio option.
The problem is the audio goes ok, but the RMX does not show the signal and some effects don't work (the effects working are the ones that don't depend on the audio signal that comes in, like NOISE, and the X-PAD effects, but the effects which are dependent of the signal that comes in, like Reverb, Isolator, etc. don't work), and also the BPM is not working, it's always marking on 120 bpm unless I do the manual tapping)

What can I do?