Welcome home.
Now how about a lot more information prior to getting the answers you need.
What airbrushes do you own to include the one you are having an issue with?
what type of compressor are you using and at what PSI/BAR?
What paints (brand) are you using ie ... Createx Wicked, Illustration , Trident, HOK , E'Tac
See while a lot of folks only want to give use little information on their introduction as you can see by my questions if all these had been answered it would make getting your answer a lot faster
Oh I almost forgot how long have you been airbrushing and what do you airbrush on... ie Body painting, canvas , paper , wood , metal .
See so much information needed just to help answer a question LOL