The wheels collision seems wrong in my vehicle project

I follow a Tutorial on youtube.Repeat many times,the wheels collision is always seams wrong.Anyone can help me,crazy~
I make a shortcut,all cfg is in the picture.
the vehicle component,the wheel component is all right.the bones name and the physicsbody is also set ok.

but as you see in the first picture,the black collision frame is not attach to the wheel.Why?

PS:My UE4 version is the latest 4.22.