i think we have all a problem one way or the other when it comes to painting, ive had insects get stuck to my frame when it was drying on the line. ive had my frame turn brown because i was sold a dodgy batch of laquer...it gets frustrating as it is time consuming, i must admit i wont paint anything any more...
did you?
1. use the same make throughout the process, primer, paint, laquer?
2. did you key the frame?
3. did you sand the primer?
4. did you let the paint dry enough before putting on the laquer, rule of thumb for me if i can still smell paint then its not dry(can take a week)
5. spray to close to the frame?
hope you get it sorted mate...post a pic once its done, have a good one.