CSGPolygon3D path z-fighting

Godot Version

4.3

Question

im trying to make a track editor where you can place road segments by editing the path’s points, however whenever there is a turning point, z-fighting happens between the previous road segment and the new one:


the polygon used is a simple rectangular plane:

is there a way to fix this? ive been experimenting with changing the points’s positions but to no avail