I have a 2011 JD 3320 eHydro with just over 500 hours on it. I've been using it regularly of late to move mulch, bush hog fields, tow a trailer around the yard, etc and no issues. When I went to do some tilling today the forward motion stopped suddenly – forward and reverse pedals did nothing. No strange noises, no drop or spike in RPMs, just no response to either pedal. After confirming I hadn't accidentally bumped into neutral, I shut the tractor off and checked the wiring under the pedals which seemed normal. Once I restarted things seemed to be working again so I assumed there was a loose connection or some debris, until a few minutes later when the same thing happened. What I eventually noticed is that if I throttle down all the way, they begin working again like normal. But as soon as the RPMs get up above 1500 or so, the issue repeats within a few minutes. I checked the oil level and that seems fine and the wires seem okay as well. No error codes have flashed, so I'm somewhat at a loss as to where to begin. Thanks for any advice!