I don't think its normal, but it could just mean that it was adjusted too far.
I found that I was constantly returning our new trailer for tweaking for the first few months. some things they would adjust, and I would need to say that it still needed adjustment after a road trip( I think once shaken everything moves a bit more), so I would take it back for a tweak.
rolling it in soon for the beginning of the year tweaking.(shower door still binding and such).
it gets frustrating. - seems to be dependant on the shop - do enough to get rid of you today.
06 Wilderness 2952BS
03 Ram 3500, CTD, Crew Cab, 4X4, DRW, 6 spd, pacbrake, aFe stage 1 mega cannon with Torq tube.