Unreal Engine C++/Blueprints Chaos Vehicle Fix

I have made a C++ chaos vehicle pawn & then created a child blueprint from it, except the vehicle is stuck in the air & does not work/move when i apply throttle or anything else that's meant to move or stop it. Inputs are definitely working just the chaos vehicle is not responding for some reason.

I need it fixed/working & also i need to know what you have changed or did to fix it.