Even in the summer, I soak spray cans in a warm water bath for about 5 minutes. And I shake them for about 2 minutes. (I store paint cans in my basement, so they remain pretty cool year round.) No issues when I do this. I mostly use Rustoleum, followed by Valspar. I use Rustoleum sandable Filler-Primer almost exclusively— for enamel or lacquer top coats. Works with any paint I’ve tried.
I started doing soaking and long shaking first with the little Testors cans when they often spit out little gobs of paint. Love the color choices but they are temperamental.

The one Krylon product I do use are the UV-Resistant Acrylic Clears. Found in the Art Dept at Hobby Lobby. I’ll use Gloss under decals. Then use Gloss or Matte over the decals, depending on desired final sheen.

__________________
Lee Reep
NAR 55948

Projects: Semroc Saturn 1B, Ken Foss Designs Mini Satellite Interceptor
In the Paint Shop: Nothing! Too cold!
Launch-Ready: Farside-X, Maxi Honest John, Super Scamp