Ender 5 S1 HELP: Weird lines splitting print

Hello guyz, i recently went to test on my Ender 5S1 some zoffset prints, and i noticed .. two weird liens appearing on my print - i have no idea what can cause them - its just one layer print, using Elegoo Rapid PLA, pretty slow layer print just to test zoffset

any idea what can cause this very… precise… “seamlike” lines? appears on every print on very exact spots.

im using Sonic pad with klipper, and Orca Slicer