I have picked 3D NOESY/TOCSY and using the 1H/1H plane all looks fine. The 15N(x)/1H(y) plane however shows peaks that are not in that plane. For example, an isolated peak in the HSQC is at 9.3 ppm and I can see the peaks (but not contours) for another NH that is at 9.1 ppm. All the 3Ds have the same resolution, I have the acquisition dimension in the Z axis (to look for NH-NH return peaks) and there are 0.008 ppm/point. I am only viewing one plane in the 1H dimension. Screenshot attached @70 in this plane, and @116 with no contours but a load of peaks.