Oh my gosh, Im no expert but the first things that come to mind are maybe they weren't sealed well or maybe they weren't dry enough in between coats??? How is he going to fix them? I would think you cant just put more paint on the peeling spot because it would not match the rest. I really hope the cabinet maker doesn't just put a "band-aid" on to cover up his mistake, I think I would want them replaced. Good luck to you, I hope it all works out and maybe a cabinet/paint expert on this board will have a better answer and solution for you. Keep us updated.

Our cabinets were made by a local cabinet maker that works for our builder. The cabinets were delivered "raw" to our house and then finished on-site. I do not know what kind of original finish was applied to the natural maple but it was dispensed out of cans(think aerosol). From the moment we had the final walkthrough on the house, we questioned the finish on the wood. Some areas appeared to have no finish on them but we were told everything had been sprayed with several coats. Within 6 week of living in the house, the maple cabs and trim were starting to spot...white spots. The painter(different from the cabinet maker) returned to our home and did some sanding and more spraying. That looked OK for another few months but the problem returned again AND again. Eventually all of the window ledges were "white"...no finish left and very raw and damaged looking. We continued to complain to the builder who then turned the problem over to Sherwin Williams...the product supplier. Sherwin Williams sent a few cabinet doors to a lab and determined the problem was "product failure". A new contractor was sent in, did more sanding, and brushed all of the cabinets and trim with a lacquer product which made me assume the original products were not lacquer. Once again, it looked better but not great for awhile and then the finish began to disintegrate once again. At this point, we were so sick of this crap. The builder sent in ANOTHER contractor who supposedly specializes in restoration and we tossed out the idea of getting rid of the maple look and enameling everything. The builder went for it...not sure why...possibly because they truly had no idea what was wrong with our wood. And this new contractor told us it had been a terrible move for the cabinets to be brushed with lacquer. We then left our house for 2 weeks with no expense reimbursement(road trip for 2 weeks with 4 kids in a camper...that was fun) from the builder for the financial inconvenience but were hopeful we would return to something that looked nice and was durable. When we walked in the door after vacation, the work really did look nice until we started noticing things upon closer inspection. We have now had a few areas that have peeled down to the maple, the cabinet doors were not adjusted correctly so the interior hinges have put chips in the new enamel, the inside of our childrens' closet doors(bi-fold) doors were barely sprayed and the wood is showing through, the bottom edge of the bottom panels of every six panel interior door was missed with the sprayer, the baseboard is full of debris, AND THE LIST GOES ON. Oh yeah, we were told to pick out the kind of paint we wanted the house walls to be repainted with(necessary due to spraying)...no strings attached. We directed the painter to use Hirshfields Platinum Ceramic Eggshell(with microban technology). He screwed that up somehow and used this Top Scrub junk. At this point, we are on good terms with the painter and he is telling us he will return to fix anything we want fixed but I'm like...DUDE, we left you the entire stinking house for 2 weeks. Couldn't you get it right the first time? That is the story.

Weird, sounds like the finish "fractured"....if they are brought back to his shop, scuff sanded and re-coated they should be fine...if the finish is "cracked" and it is through the paint and back to the substrate then they would need to be stripped of paint and repainted, or replaced with new fronts New fronts that are drilled the proper size to accept the handle screws so that this does not happen again

I'm trying to wrap my head around what would cause the paint crack like that. It's obvious it is failing. We know that much. But why so soon? I have painted cabinets down in my dank basement that haven't seen new paint since decades before lead paint was banned. Yes the old lead oil paint is better. A thought: The cabinets were painted in relatively warm moist environment. Then shipped in freezing dry weather. The wood rapidly shrunk. Installed in your house. Temperature and humidity rapidly go up and paint begins to crack. But there is no way this could happen in a span of 6 months. Is the paint alkyd or acrylic? I think the paint is some sort of a two component mix. One of the components was not mixed correctly and the paint never cured properly, hence why is has failed.