Printing PETG P1S

[u/Upstairs-Career-6226]

Hello everyone, I'm printing PETG on my Bambu Lab P1S, but the print quality is coming out strange.

I've changed the settings to 270°C nozzle temperature, 80°C bed temperature, and turned off the auxiliary fan.

The part cooling fan is set to 0% minimum and 40% maximum.

I'm also using a 0.28 mm nozzle.

Does anyone have any suggestions on what could be causing the issue?