Error - SPCRJointDynamics does not work properly

[tomcup]

Error Message:

Some objects were not cleaned up when closing the scene. (Did you spawn new GameObjects from OnDestroy?)
The following scene GameObjects were found:
SPCRJointDynamicsJobManager

My English level is very poor, so the following may be strange.........

This is what I did just now:

• Open the project
• Install SPCRJointDynamics
• Add some "points" and "colliders" to my character
• Run (everything is OK)
• Stop (No problem, still)
• Run again
• Stop (Error: I got the above error)
• Run (SPCRJointDynamics unable to work properly)
  This is what I see while running for the last time:
  
  Then no matter how many time I Run or Stop, SPCRJointDynamics unable to work properly as shown in the picture above.

I found a way to avoid the problem for one time is that disable all the controller:

Then Run, though it still doesn't work, it can work properly for the next time I Run.
But the Error is still there if I Run for one more time.

Update on 2022.12.23:(use translator)
There is a strange phenomenon that every time the error appears, the problem that SPCRJointDynamics cannot work properly will occur. So I guess the problem may occur in the Destroy logic of SPCRJointDynamicsJobManager or somewhere else.

I used HDRP in my project, but according to the error message, this error is about Jobs system, not HDRP or something else.
I don't have the time or ability to read the code and make possible suggestions, the whole system is too complicated for me.

Oh, My English is so bad...

[tomcup]

I found that the main problem of SPCRJointDynamics isn't here, there is a easy way to prevent the error from unity.

// SPCRJointDynamicsJobManager.cs
// Line 25
List<SPCRJointDynamicsController> _Controllers = new();

+ private static bool _applicationIsQuitting = false;

// Line 29 now
static public SPCRJointDynamicsJobManager Instance
{
    get
    {
+       if(_applicationIsQuitting)
+       {
+           return _Instance;
+       }
        if (_Instance == null)
        {
            GameObject obj = new GameObject("SPCRJointDynamicsJobManager");
            DontDestroyOnLoad(obj);
            _Instance = obj.AddComponent<SPCRJointDynamicsJobManager>();
        }
        return _Instance;
    }
}

// Line 68
private void OnDestroy()
{
    StopCoroutine("EndOfFrame");
+   _applicationIsQuitting = true;
-   _Instance = null;
}

But the real problem like the picture as shown below after running once is still happened (I moved the character at runtime):

Although there is no error in the console window, the main problem is not reported by Unity:

[NoriyukiHiromoto]

We will check for errors.

[NoriyukiHiromoto]

Could you try the latest version?