2018 1260S. DQS upshifts just fine but no downshifts at all, ie: shift lever will not move down. Works like normal with the clutch. I tried turning DQS off and then back on and no change. In the past it worked just fine as long as the throttle was closed when downshifting. I did discover that with very very slight throttle, downshifting works just fine. My suspicion is that the TPS signal to the DQS is wonky. Anyone else have this problem? Find a fix? Ideas as to whether there is a reset for the TPS position?