Bits in my pen(ink)

Wondering if anyone has any ideas what could be going on. Purchased an Asvine v126 , cleaned it as one should before use. I filled it with Platinum Classic Citrus Black, and experienced no issues for a few weeks, and then noticed floaties and bits. I assumed it was a reaction with the ink since it is an Acid ink. So I cleaned it again (thoroughly), and filled it with polar green, only a few days later and I’m already noticing bits again. Any ideas? Neither bottle appears to have preexisting bits.