335 steiger with incommand and 6500. Using cellular RTK, has worked flawlessly the first week of planting now the tractor seems to nod off the line then harshly correct. Tractor has steering position sensor in center pivot values seems to display it works. Straight lines sometimes it has a good pass now and then but most the time and with curves its rather violent. Have adjusted sensitivities every which way. Something has to have gone bad because its worked well for several years no adjustments. Ideas?