I am using Cura 4.8 with a Creality CR-6 SE and CR-6 Max.
When I sliced the Maker's Muse Printmas Christmas Tree Lattice, I blew it up to 400mm height, the max of the CR-6 Max. About 100 layers in, Z shifted back to 0, broke one of the limbs of the tree and drove the head into the base of the print, and the next layer went back up to the next height. At first I thought it was a corrupted SD card until I fed the GCODE file via Octoprint and I caught it doing the same thing again. Like a fool, I deleted the gcode file and resliced it and it printed fine this time.
Roll ah