I'm really starting to think this is a heat and humidity issue during manufacturing. The Stern factory is likely not air conditioned, and we know these JP games were built in the last week or two, when we have had some very hot weather. Does the new water borne clear suck humidity back no into it if applied in a heavy layer? Does the heavy layer not fully cure under the current curing conditions at the playfield factory? Is the water based clear sucking humidity back into itself again after the normal curing process at the factory?
Is the clear trapping the humidity in the wood and causing a delamination of the printing and softer clear coat? I had a gottlieb machine once that spent time outdoors under roof on a golf course in Maryland humidity. When I went to mask the playfield for touch-up, the playfield artwork came up in sheets and completely delaminated from the wood when I removed the mask. I believe the humidity wicked into the wood and caused the ink and clear coat to release itself. Could this be happening with the new clear coat?