I have two buddies that just this year bought new fifth wheels, one bought a 2018 KZ Gold in February, he just picked up his trailer last week from the dealer after getting back from Florida..... front jacks needed to be replaced!! He started having jack problems in March.
My other friend bought a new 2018 Jayco Pinnacle in January, once the weather warmed enough he discovered his front AC didn't work. When addressed it was a "loose connection" at the roof! UNBELIEVABLE
It's just really sad that this stuff is happening more frequently and these manufactures don't seem to be too bothered about it.
Dan