Check the screws on the dinette post sockets on the floor. Ours were too long from the factory and protruding through the floor just enough to scar the linoleum. Longer than 3/4" screw in a 3/4" floor. Idiots. Managed to fix ours before any major damage by changing out with shorter screws. Jayco owes you one and the guy installing the screws needs to find a new career.
John and Rebecca Dickson
Emma-8 / Little John-5 / Iva-1+
2013 Ford F-350 Lariat FX4, CC LB PSD, DRW
2015 Jayco Jay Flight 28BHBE (#8)