Rustoleum clear gloss topcoat

Submitted to Community Café

I applied two coats of rustoleum's white spray pain to a filing cabinet, with 24 hours between coats with no issue; I made sure surface was clean and smooth. Within minutes of applying the clear gloss topcoat it created what I could best describe as a spider web in about 6-7 spots throughout the piece. It was in my garage which was well ventilated and at room temperature. I've never had this happen before and now have to re-sand all the spots re-paint it. Anyone experience this or know why it happened?