Just a heads up that this isn’t a layer shift. A layer shift moves the entire model away from its origin because of a step loss. There are also other reasons. A layer shift doesn’t return to its original position several layers up. It stays shifted. It also isn’t only on one face. CoreXY machines shift different than Cartesian machines. Generally cartesian machines shift in X or Y while CoreXY shifts in a combination of X and Y.
I would investigate the gcode preview. 8 wall loops is a lot and the slicer might doing something weird.