@lazybitgames We found a problem in the convex tracing method.
For some reason the skidmark not match with the wheels. With line or Sphere works perfect. But with Convex it does weird things, like change left/right offset fast in you go in straight line ¿?.
It looks the problem is with the hit trace of the wheels. Having in mind the convex shape is a cylinder & in theory it only moves with steering, no rotation/camber/toe, no idea why this happens.
So, maybe this means the physics with the convex shape not works as they should? No idea how the trace hit in convex shape should work, or maybe with convex shape using the hit trace from wheels to set the skidmarks position is not the correct way ?.
EDIT: Well, im guessing the hit trace points in convex cylinder shape are the left-right edge, so that why the skidmark “dances” to one side or another and does weird things. So, i guess we just need to detecr when the wheel hits the ground and set the position from the wheel static mesh.