It is a best practice to document any defects that occur. You may well find that the rate of defects with a polyester wrinkle exceed those for smooth polyesters. Here are some of the questions that should be answered to resolve a reoccurring defect.
Do they occur on all parts or just some?
Are they on one side of the part or all sides?
What is the gun-to-part distance where the defect is occurring?
Is the distance different for areas without a defect?
What is the film thickness of the coating where the defect occurs?
Is it different than areas with no defects?