First try with TPU. Looks like it's absorbed moisture. Can someone

Printing issues related to filament affected by humidity

Moisture in Filaments? - Recreus

TPU 3D Printing: A Comprehensive Guide to Printing with TPU

How to Succeed when 3D Printing with TPU and Flexible Filament

How Do I Print This Mighty Vape Case In TPU? First time TPU user – How do I print this? (Printing help) – Prusa3D Forum

Printing TPU on the MK4 - Page 3 – How do I print this? (Printing help) – Prusa3D Forum

TPU is a material which needs to be dryed. Before drying is 2 days after opening pack and also stored in box with silicone packets : r/3Dprinting

Doubts when using flexible filament for 3D printing? We answer you - Recreus

What is the 3d filament dryer you choose？ - Bambu Lab P1 Series - Bambu Lab Community Forum

TPU has holes, inconsistencies while printing straight from dry box : r/FixMyPrint

Moisture in Filaments? - Recreus