Traktor4 + CDJ900nxs +Turntables Audiotechnica 1240

Hello!

I have to thank you for your help. I updated all my systems and traktor is recognizing the channels from my DJM900nexus. 4 channels traktor to 4 channels mixer.

But Now I have another doubt, because traktor does not recognize the control vinyl. Traktor4 promises not to use an interface for this setup but I can't find how.

Im receiving the sound of channel 1 traktor in channel 1 djm900nxs but not the control vinyl. it doesnt even recognize it, cant calibrate.

Could anybody help me?

I connected:
turntable→rca→djm900nxs channel 1. vía phono
Mixer→channel 1: selected input →usb
Macbook m2, traktor pro 4- usb to mixer.

Configuration in software pioneer mixer:mixer input: usb. output - ch1 timecode phono