Rekordbox audio problems?

Hi. 
I have under some time now played with your Rekordbox DJ software. 
But after I updated Rekordbox last time I can't find the external mixer as an audio output.

For exempel.
I have the DDJ-RZX and I intall everything as I have done before. I can scroll in the meny and play with the hot cue. 
But only with the sound from my computer. When I try to find the RZX as an audio output I can't. 
I reinstall the drivers for the RZX but still haven't the option to pick the RZX as output.
(The same thing happened with an 900nexus mixer, can't find it as an audio output.)

Please help my find the problem?

Alex