I had four cabinet doors come apart like that. It appeared to me that the doors were to be glued, with a small brad stapled in to hold the door while the glue dried. I think they did not use enough glue. I was told Jayco does not make the doors, that part of the process is out-sourced, and they had a bad batch of doors. Jayco sent me new ones, and they have been fine. I do keep my eye on the doors while the rig is within the first two years!
2015 Jayco Eagle 33.5 RETS
2013 Ford F-250 6.7 PSD Lariat SCREW