I keep getting these artifacts. I've tried different temps, drying my filament, slowing my print down, switching to outer/inner wall print, increasing fan speed, filament roll in a dryer box now.
Also checked the extruder gear and isn't caked.
Prints fine on a friend's P1S
Bambu A1 Mini
Polysonic PLA Pro
Tried Bambu PLA and Polymakers online filament profiles