New Tevo Tornado. Printed 2 cubes in PLA. One with 1mm layers and 30% infill and the other with 2mm layers and 50% infill. Bed 60 deg and nozzle 200 deg. Both have a bulge for a few layers at around the 80% height mark as seen in the photo. I don't think it is layer shift as it is bulged out on all 4 sides. This is my print printer and I have no idea what to check or tweak. Any ideas would be greatly appreciated. Thanks.