Hello everyone I think I have a problem with the black ink lamy .I was using it normally but it started to feel very dry and the nib something rough.So I decided to clean it (I regularly clean my pen since I changed from blue to black lamy and rinsed them very well with distilled water) and discovered that the feeder had some black viscous waste and took it off with a stick and water.So is it normal that the feeder has been soiled by the ink? or there is a problem with this ink. It is also worth mentioning that I am always using my pen but this time they spent two days without using it. I use a Lamy 2000 BB with nib modified to stub.