In a new trailer, I end up seeing at as fact of life. Sometime the amount of "lift" from the corner sab jacks can change things, tweak the chassis a bit and so you might experiment with that.
After you've had the trailer awhile, just don't walk there.
If it really bothers you, and I can imagine how it might, keep on your dealer. You could also send an Email to Jayco and ask their opinon and any options for repair.
2013 Starcraft 266RKS
1999 Ford E350 V10 Chateau (6.8L, 4.11 LS)
2005 Cedar Creek 31LBHS
2001 Sprinter 303BHS
1997 Mallard 33Z
1990 Starcraft Starmaster