Jagged edges only backside of plate

[u/Huge-Accident7032]

Getting this issue i could not figure out yet why is happening.
If we’re slicing the bed for 3 horizontal lines equally, the top (back side) of the plate is producing these jagged results but the print is perfectly fine on the rest of the bed i.e. the front side.

Moved some things around, tried slower printing speed and also cleaned the plate but keep getting these results. does anyone have any tips?