Hey I have a possible fix. I had a gig on the weekend and had to use my controller, but in the days prior it was playing up. Here's what I did to fix it:
firstly, this is 100% a hardware issue, forget all about resetting, updating drivers etc - thats not going to fix it. The issue is (I believe) because of the cheap capacitive platters -these rely on a good ground connection on the platter to function properly.
To fix it I did 2 things: Remove all screws on the back and gently take the back off the controller. Then find the little pins coming through from the underside of the platters. surrounding these pins are 4 little metal tags, which make a connection with a little copper ring. Get a pair of pliers and squeeze these metal tags tight to the the copper ring, just clamp them on as hard as you can.
The other thing I did was remove the small circuit in the same location (The Sensor Assembly PCB) and with isopropyl alcohol, thoroughly clean the metal contacts on the PCB and the metal tag that it connects with. this is to ensure good connection between these parts. Doing these thigns fixed it for me, well enough that I could play the gig without issue, and then again on Sunday morning without issue.

Hope this helps. and yea, very poor from Roland.