Another thing I just thought of...
Do you have a mini moistue trap between the end of the hose and your airbrush?
Because especially in cold weather the compressed air will still be relatively warm and moist when it gets into the hose, where the moisture will condense into water which will mix with your paint.
This is an extra problem you don't need.
I usually give this advice to anyone who starts out airbrushing as I have run into this problem with water and never had it again after installing this little gizmo.
It's not expensive, it saves you a lot of problems, even if you perhaps some day decide to go for a better airbrush you'll need it anyway.

For a starter set this isn't bad,.. the compressor does its job fine and the fact it has a tank is a step-up compared to the one I got in my starter set a year ago.
I also got a Fengda airbrush with mine and over the past year I have learned a lót about airbrushing and importantly, fixing issues.
I can't compare (yet) but a more expensive airbrush like a Harder & Steenbeck or Iwata may possibly present you with a smoother operation and less issues but over the past year I have learned to deal with just about any problem airbrushing may present you with, I wasn't afraid to ruin an expensive airbrush by taking it apart so I can do that with my eyes closed by now, I know how to solve any issue in 5 minutes or less through the experiences I gained with this airbrush,...
It does what I need from it so far, I haven't had much problems for a long time now.
I am currently, a year later convinced I will never want to go back to full brush painting, casually looking out for a newer, higher quality airbrush (curious as to the gain in ease of use and practical considerations, having a second one being handy) but not in a rush.

Basically, the Fengda will do for a starter brush, if you are on a budget it's a fine alternative imo... some may disagree. ;)
If you can afford it, you could choose to go for a slightly higher end airbrush like the Harder & Steenbeck Evolution (mid range price) or Iwata HP-CS Eclipse, the brands I am looking into currently.

Whichever way you go, one tip in advance....
Despite the compressor having a moisture trap you would do well by getting yourself a mini moisture trap to put between your airbrush and the hose, or you will end up at some point with your airbrush sputtering water along with your paint.
It only costs a few bucks, it will save you a lot of frustration and lost airbrush time.