So.....maybe someone should have done more then a cursory search about playfields before opening his mouth. I can’t state this emphatically enough. HE IS WRONG!!! Do not listen to his opinion on this. I repeat OPINION! It has been explained repeatedly in multiple threads. It’s a thickness and curing problem with the playfields.
Clearcoat cures from the outside in and if you crack or damage the clear before it’s fully cured, it looses its integrity and can pull the undercoat (the ink) just like when you crack the clear on a car and the paint comes off and the primer still adheres to the metal. The playfields are being rushed and that’s 90% of your problem.