Please tell me What is wrong with this code

oh ok, but i Have some weird problem that only my root bone is getting affected by the Impulse and not my other bones in the skeltal mesh. Do you ahve any idea why that happens ?

for example


GetMesh()->AddImpulse(GetActorUpVector()*impulseAmount, FName(TEXT("Vehicle")) ,true);

works fine and that is root mesh and no vertices weighted


GetMesh()->AddImpulse(GetActorUpVector()*impulseAmount, FName(TEXT("Hub_BL")), true);

does not work it is not a root bone and with vertices weighted