I'm on a mobile app, so I can't see if you have anything in your signature.
I have a 2008 Titan. I had a similar issue. I run an Equalizer brand WD hitch. I had too much weight distributed which also created too much friction in the antisway action. If I made a sharp left turn to get on the highway, I had to keep the steering wheel turned a little to the right as I drove down the highway. If I made a sharp right turn to get on the highway, I had to keep the steering wheel turned to the left as I was driving down the highway.
Basically, I had so much friction in the anti-sway that the truck and trailer could never straighten out. Once I corrected that issue, everything was fine. I just had to follow the directions in the manual.
2014 Flagstaff V-Lite 30WTBS
2008 Surveyor SV-234 (SOLD, but not forgotten)
2008 Nissan Titan Pro-4x crew cab