WheelCollider WheelHit Issue, please help!

WheelCollider WheelHit Behaviour
Hey guys! My project is a bit complicated and messed up, so I started a new one to see if I can reproduce the problem and yes, fresh new start, and facing same trouble. Here we go.

Fresh new Project, with main camera and light in it. Added a plane, scaled it to 100,0,100. Added a cube to wich i added Rigidbody with mass of 800. To it i added 4 WheelColliders, wich i positioned about right for a "car". Then i made this short script with wich i want to see the values of the fwd and sideways slip of all the WheelColliders, separately.

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4.  
5. public class ColliderTest : MonoBehaviour
6. {
7.     public WheelCollider WheelFL;
8.     public WheelCollider WheelFR;
9.     public WheelCollider WheelRL;
10.     public WheelCollider WheelRR;
11.  
12.     [Space]
13.  
14.  
15.     public float Wheel_FL_SSkid;
16.     public float Wheel_FR_SSkid;
17.     public float Wheel_RL_SSkid;
18.     public float Wheel_RR_SSkid;
19.     [Space]
20.  
21.  
22.     public float Wheel_FL_FSkid;
23.     public float Wheel_FR_FSkid;
24.     public float Wheel_RL_FSkid;
25.     public float Wheel_RR_FSkid;
26.  
27.  
28.      void Update()
29.     {
30.         WheelFL.GetGroundHit(out WheelHit FL_HIT);
31.         WheelFR.GetGroundHit(out WheelHit FR_HIT);
32.         WheelRL.GetGroundHit(out WheelHit RL_HIT);
33.         WheelRR.GetGroundHit(out WheelHit RR_HIT);
34.  
35.         Wheel_FL_SSkid = FL_HIT.sidewaysSlip;
36.         Wheel_FR_SSkid = FR_HIT.sidewaysSlip;
37.         Wheel_RL_SSkid = RL_HIT.sidewaysSlip;
38.         Wheel_RL_SSkid = RR_HIT.sidewaysSlip;
39.  
40.         Wheel_FL_FSkid = FL_HIT.forwardSlip;
41.         Wheel_FR_FSkid = FR_HIT.forwardSlip;
42.         Wheel_RL_FSkid = RL_HIT.forwardSlip;
43.         Wheel_RL_FSkid = RR_HIT.forwardSlip;
44.     }
45. }
46.  

I get for the first 3 wheel colliders the values in realtime, but the forth one always stays 0, no matter how i arrange or rename the wheelcolliders.

Thank you!
And please pardon my english-spelling abillities!,

 

Okay, after about 2 hours of fighting with the script, I have found that simply renaming the floats to use any name but not using "_" in their names, will make it work...why is that happening ?