Quoted from Bublehead:

TL;DR
I have worked with a silicon based high temp clear coating that we were developing to be used in the aircraft lighting industry, I am not an expert but I can offer my experiences-
Our pooling was the result of uncured (un-cross linked and under cross linked polymers) combined with physical pressure. What happens is the CC slowly continues to crosslink and starts hardening as the physical forces of the posts continues to provide pressure. This builds up a slowly increasing difference in force across the "pool" which acted like putting a putty knife under the pooled mass and pried it up. This force is happening because the shrink rate around the post is not linear. Any bond layer between the CC and substrate (i.e. the artwork bond of the inks to wood) will experience a gradient force over time that shears the bonds. This makes the CC the only thing from preventing the newly formed "chip" from coming completely free, until the CC becomes hardened and brittle enough that the force sheers the CC, the chip is now free to roam, and does.
The solution is to ensure the CC is completely crosslinked before installing the posts, which requires extended curing time, and or a curing accelerator (Some CC we used only cross linked at high temps and required a curing oven) but the main thing that has to occur is the CC under the posts needs to be completely cured prior to putting any pressure on the CC, and second, I would look at the bond strength of the artwork to the bare wood or whatever is on the wood. This can be tested by epoxy gluing popsicle sticks to the printed surface and pulling on the end and measuring the force required to separate it. You will find that screen printed inks and paints tend to have WAY more bond strength than DTS printing does.
The manufacturers don't seem to think solving this issue is a big priority. Yet.

Quoted from fooflighter:

Thanks, found it on the top edge pf the playfield
April 21 Build
Jan 21 Playfield[quoted image]

Quoted from Flipper_Ripper:

You are looking at over 60% chance of your playfield being defective. Number might even be higher, I haven’t spent as much time on it.

Quoted from Flipper_Ripper:

That’s a 60% probability of your CE having a defective playfield. Sample size 23 CEs. The 9 CEs that never reported playfield damage were also not asked about it, so some of those could also have unreported damage.
Once again, these were just Collectors Editions.

Quoted from ARTofAWD:

That's exactly what it looks like. If Stern doesn't have a good answer, I'll try to polish it out.

Quoted from screaminr:

No , on GNR the artwork goes up to the posts but they do remove it around the holes .
I did JINX it though , after posting , someone in the GNR thread said they had some pooling on a late game and removed the post and the artwork came off . Besides that , issues after the first batch very rare .
I took these pictures tonight after almost 1000 plays and everything looks good , even around the scoop .
I tried to get some pictures of the dimpling on the Playfield but they're so small they don't show up .
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