Do y'all know what these chunks that come out of posca markers are

Do y'all know what these chunks that come out of posca markers are, or why it happens? Thanks. : r/graffhelp

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Posca PC1-MR Ultra Fine Markers

Do y'all know what these chunks that come out of posca markers are, or why it happens? Thanks. : r/graffhelp

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uni POSCA White = 3 Different Point Sizes per Pack: PC-1M(0.7 mm), 3M(0.9~1.3 mm), 5M(1.8~2.5 mm)

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September 2023

Do y'all know what these chunks that come out of posca markers are, or why it happens? Thanks. : r/graffhelp