As long as the thrust angle is correct and then the front steering and suspension is aligned referencing the rear thrust angle and aligned correctly, that part of the equation is good and the other problems will be something else. Ride height, caster, camber, tire pressure and toe in that are set to specs and is checked correctly for any worn out components, well then your problem is elsewhere.
I have watched many an alignment tech act like they knew what they were doing but would just give a cursory sight inspection and set the toe and let it go. I always gave a before and after printout when I did an alignment and I will not get an alignment done anywhere that does not supply that to me.