First try with TPU. Looks like it's absorbed moisture. Can someone confirm that these are symptoms of moist filament? : r/3Dprinting

Moisture vs. flexible filaments - Recreus

Printing Guidance】The Influence of Filament Dryness and Humidity

Printing issues related to filament affected by humidity

Does Your 3D Printing Filament Have Too Much Moisture?!?

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

Coatings, Free Full-Text

TPU is a material which needs to be dryed. Before drying is 2 days

Moisture and 3D Printing – Part 2 – Effects of Wet Filament – Drywise

Printing issues related to filament affected by humidity

3D Printer Stringing: 5 Simple Solutions

Filament Diameter: 1.75 mm; Shore Hardness: 92A; Dimensional Accuracy +/- 0.04 mm;1 kg (approximately 2.2 lbs) per Spool; Vacuumed Sealed with

SainSmart TPU 1.75mm 92A Flexible TPU 3D Printer Filament, Dimensional Accuracy +/- 0.04 mm, 1KG Spool, Soft Pink