Been using Studio One 3 for about 6 or so years now and have never had any issues with it opening and recognizing new hardware. Now, after putting in the SSL MadiXtreme it just freezes a few seconds into opening the DAW and stops responding. It's version 3.5.6
I was considering upgrading to newest version here recently, but if it's not going to work with my new set up, I might not.