The pic below is about 12 hours after wiping the nib off. This is with a new bottle of Vinta Heritage Brown Pamana 2018. I've had multiple other inks in the pen with no issue before so I'm pretty sure it's the ink causing this. I've read about potential cleaning solutions for this, but since it's an Arco Bronze celluloid I want to make sure that nothing will happen to the material while getting rid of the junk. Is there a consensus on the best fungicide solution that's safe for celluloid?