Cvt jerking and shuddering has been discussed ad nauseam.
Try changing all the fluids, that USUALLY corrects the problems unless something drastic is going on, hence a lawsuit.
Had the same problem, but after I routinely change the oil, cvt fluid, transfer case, diff fluid. Got rid of the problem. I was late in the game, only started at 87k miles too.
My original cvt has been smooth as butter, and going strong after 13 years.
But of course it could implode tomorrow.