Attaching a object with constraint to a rotating object

Hey i am currently trying to make a Ferris wheel in Unreal 4, I made the cart and the rotating wheel separate objects with the wheel having bones for the cart to attach in the right spot. I have also made a animation to make the wheel spin. I put all this into one blue print all parented under the wheel with the spinning animation. I then parented the Ferris cart and constraint to this and set the constraint to look at the bone when i play it the cart will spin when the wheel just fine but when i simulate physics the cart will wobble back and forth properly but no longer is attached to the Ferris wheel and does not spin with it but at the same time im seeing the constraint still rotate properly. Any help would greatly be appreciated …Thanks in advance