Originally Posted by Mike B
Wow, it looks like the fill primer just melted the base coat.
I think you put the fill on too thick. Try 2 or 3 thin coats.
I agree with Mike.
I did some painting yesterday and the weather was the same as yours. My method was: 99 cent can of flat black paint from home depot (as my primer), water based air brush paint, left in my work truck with the heater blasting (lol) to heat and dry then while still warm shot the clear coat on. Added multiple coats of clear and put back in the truck to help setup and dry. Turned out nice...