Contact support, this is a known issue with UM PLA, the issue is supposed to be fixed now, but I have not seen the new PLA formulation to be able to know if it's better now. I should be getting the new stuff soon.
Read more here and see a video of my testing method to identify the faulty PLA.
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peetree 3
I had the same problem with the white filament recently. You may find that in certain spots, it is easy to snap the filament between your fingers.
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