I used to be able to record audio tracks easily, but I haven't been able to do so for a few years. It hasn't mattered that much - I can record midi just fine and that suited my purposes... until now. One day (sometime in early to mid 2015), I just wasn't able to record audio anymore. I've been putting off dealing with it, but today is the day. At least to start the process.
I am using Studio One 2, version 220.127.116.11360, built on Dec. 2, 2014. My interface is an M-Audio Fastback Pro. The computer is a 2009 iMac 24 running Yosemite 10.10.5
Studio One seems to recognize my interface.