Try reinstalling firm 14 just in case. But to stay on topic, yes, I've tracked in the past week, since 14 was released. No trouble getting squeaky clean tones with the usual amps, known for clean.
I also used a Marshall clean, by turn the drive way down, and also the INPUT TRIM. It was the first time I ever changed that knob. Very pleased with what it can do, and I plan to mess with it more, in future programming.
14 and ultra res, and my programming and understanding improving, I now find it difficult to get a bad tone. I have had the experience in the first couple of months, where I kept adjusting, adjusting, and then go away for a few days, and come back, and that tone is horrible. Those days are gone now.
It's all good and working great for me.