DJM 900 nxs2 abelton sound card routing

Looked around, not entirely sure the previous posts I saw cover the issue.

I recently upgraded to a DJM900 NXS2.  Previously I had no issues using the DJM as a sound card through abelton.  Now it never seems to show up as an option.  I may have downloaded the 64 bit update of abelton, is that the issue?  Should I install the 32 bit version? Or is there something else I'm missing.  Had no issues before routing traktor/abelton/maschine through the DJM so not sure what's up now.

thanks,