Inputs not working

I have had my Mac Book Pro for about a year now. I transitioned from PC to Mac and the Multimix 4 USB worked great. Since I have upgraded to Yosemite the multimix will no longer register the inputs. I can see the USB Audio Codec, but no inputs are available in my DAW. I am using Reason v8. This worked great until I upgraded my OSX. Help?
1 person has
this problem