clutch shudder

Good afternoon, I have a shudder problem on a bronco sport big bend 2021 1.5 L. The rattle occurs when starting at low speeds during cornering. However, after the vehicle has been driven on the highway, the rattle disappears when starting to drive thereafter. Apparently the problem is related...

I’m having a transmission shudder at 30-40mph and again at 50-60mph. They replaced the torque converter, it took 2 1/2 months to get the part. They said it was all fixed but the shudder is still there. Anyone else had this problem and what did they do to fix it?