Tracks car flying over the road

[origalde]

greeting to modellers
I followed the steps of the tutorial below

LilSki's Tracks

Videos of my various track projects for Assetto Corsa.

www.youtube.com

but for some reason I don't know when I test the track, because the car isn't on the ground but is spinning in the air.
the example photo

info> i follow the folder structure and apply 'save persistence' in sdk

kn5 file> https://we.tl/t-G6ZQDspAiL
blend file > https://we.tl/t-M2Sk58UwmK

second problem : in sdk i don't see the full track and the weather seems foggy (strange)

https://imgur.com/yhDqBfD

someone can help please ?

 

[origalde]

problem fixed for now

 

[nm.akshay]

Did you solve the flying car problem?