Vehicle starts to jiggle when touching the ground

Hi,

I’m new to gamemaking in general.
I followed a tutorial to create a vehicle (01 - Vehicle Setup Part 1. - YouTube).

When I start the level the car starts to jiggle like crazy.
Video: - YouTube

Thanks.

I fixed it.

Importing the FBX somehow turned the bone pivots around 180°.

Just match there orientation to the UE4 axis system.