PETG finish changes mid print - Troubleshooting - Bambu Lab

What would cause this kind of finish change in the middle of a print?

On-going issues with Bambu Lab PETG CF on X1C :( - Troubleshooting - Bambu Lab Community Forum

About to give up on printing PETG with the A1 : r/BambuLab

How to Succeed when 3D Printing with PETG Filament

Unsure as to why some of the print is glossy and the other is a matte finish? Printed on the Bambu Lab X1-Carbon w/ Prusament PETG at 265°C. : r/FixMyPrint

Bad printing quality with PETG - Troubleshooting - Bambu Lab Community Forum

PETG Issues - Bambu Lab X1 Series - Bambu Lab Community Forum

Drying PETG is a waste of energy! (for me) - Bambu Lab X1 Series - Bambu Lab Community Forum

Bambu Lab PETG Basic Refill 1.75mm - 1 kg (Various Colors) –

P1S Issues with PETG while PLA prints flawlessly : r/BambuLab

Bad printing quality with PETG - Troubleshooting - Bambu Lab Community Forum

How to Succeed when 3D Printing with PETG Filament

PETG Issues - Bambu Lab X1 Series - Bambu Lab Community Forum