Hi @Davit_Masia
1 - Draw debug function works slowly but physics is fine. Please don’t mind the delays.
2 - About skidmarks, you can type smaller value to “Skidmark Min Distance” in FGearEffects component.
3 - I don’t know why the effects disappear after a while. maybe it gets deleted at garbage collection time. Did you type UPROPERTY when defining the component?