I've been using 3 separate Saitek throttle quadrants for years. I fly a lot of 4 engine piston aircraft, so having the multiple levers for mixture, pitch, and throttle has been nice. However.. since updating to V 3.4, I can no longer have 3 throttle quadrants active. Only 2. I use FSUIPC exclusively, and have the controls disabled within the P3D menu. I've tried everything... switching usb ports, switching quadrants, you name it I've tried it. Its not a faulty quadrant either. The one thats not working will suddenly begin to work if I unplug one of the others. Any ideas?