I'm hoping to get some help with why my airbrush looks like I under-sprayed after it has dried awhile, but it's perfect when I first spray it. I've had this happen a couple of times. The first time, I let my base dry overnight; the second time I only dried it a few hours. (I do dry in front of a fan and, after reading some other forum discussions, I'm thinking that may be some of my issues with it seeming to puddle up a bit or just not drying enough between light coats.) Anyway, I used a silkscreen over my stencil and got clean lines when I initially airbrushed. Then later, the cookies look like I under-sprayed them. Why is the color bleeding out after it dries or in the process of drying? I've never had any trouble with my icing bleeding so I'm stumped. Here's a picture of one of the instances. When I had it happen with stripes, I took a slightly damp stiff brush and cleaned up the edges to make them look better and it did help, but that's time-consuming and hard to do on a pattern like this. What also seems weird to me is that I can clean it off which tells me it's on top. If it was bleeding into the icing, I would think it would be "in" the icing not on top where it can be wiped off. (I live in Southern California, but not near the ocean so it's not humid. It's actually a more dry climate here in Riverside County.) Thanks for any help or suggestions.