I've had my FaderPort for about two years this coming March, and it's developed an issue over the last few months in which the touch sensitivity will be intermittent, especially when pushing the fader from infinity to zero. You can tell it's touch sensitivity because the fader in Studio One will stop glowing for a split second and the FaderPort will start fighting your finger, only to jump back into line with it when it begins sensing your touch again.
Just recently, it's gotten worse, to the point that it actually records rapid jumps to the original value during Touch-mode automation. Loads and loads of automation points are made, often not the values I want, because the fader decided I wasn't touching it, then that I was again, very rapidly.
That's a problem, and will soon become a real wrench in my mixing workflow, since I very intuitively reach for the FaderPort to do balancing and automation moves now. I want to see if there is a way to fix this, physically or otherwise. I don't remember how long the warranty on these lasts, but I do know that it is shy of two years old. I got it mid-March 2016.
I'm sure I'll be asked to submit a technical support ticket, but the link in the "Repairs" section of your Support page brought me to the Knowledge Base, which has no option for submitting questions or tickets besides this site. So, I apologize, and I'd like to not have to submit this problem twice.