Also, when I load JRMC, I cannot see my DAC at all, when I was using my previous Snakoil install (earlier that same day) I had no issues whatsoever.
The only thing that changed is me upgrading to the latest version. I would have happily rolled back to this older (working) version, but I have another new issue - my PC's BIOS will not reset and I'd disabled the video output, so now I'm stuck with the snakeoil that doesn't work and no ability to roll back. I've even removed the BIOS battery for several days and unplugged the PSU from the wall.
All good fun.