I recently notice that sound on every channel is distorted or I get constant garble sound or no sound at all, and only solution is to restart ( restart GUI doesn't help) and after that everything is back to normal. I know that 6.1 is beta but I point out this problem for developers in order to find solution. I guess that the this is a codecs problem. By the way I use VU+ Solo SE V2, under the latest update of 6.1.