XDJ RR headphone problem with Virtual DJ 8

Hi Everyone,

Does anyone use XDJ-RR with Virtual DJ 8?

Controller driver installed, in audio setting the "Speaker + headphones" is selected. But even I set the master output to chan 1-2, and the headphones to chan 3-4, my headphones does not work. Music is playing on the speakers well, but I cannot pre-listen.

Do you have an idea how to fix it?

Thanks