Mooth prints with occasional surface defects – P1S

I’m using a P1S printer.

The print quality is generally good — the surface is smooth and looks nice — except for small pits or gaps that appear randomly. It feels like the filament under-extrudes for a very brief moment.

Here’s what I’ve already tried:

  1. Performed maintenance
  2. Replaced the nozzle
  3. Ran calibrations both from the P1S printer and the slicer
  4. Disassembled and cleaned the extruder, thinking something might be stuck in the gears
  5. Formatted the SD card
    WhatsApp attēls 2025-05-28 plkst. 09.35.27_014e0ae8

Has anyone experienced something similar or has any idea what else I could try?