AR Foundation NullReferenceException

[ChrisTJie]

Describe the bug

On mobile platforms An error will occur if you click or drag any object but it does not affect the overall operation behavior Only the command bar of the backend is prompted with an error

NullReferenceException: Object reference not set to an instance of an object.

Microsoft.MixedReality.Toolkit.Input.BaseCursor.OnPointerUp (Microsoft.MixedReality.Toolkit.Input.MixedRealityPointerEventData eventData) (at <00000000000000000000000000000000>:0)
UnityEngine.EventSystems.ExecuteEvents+EventFunction`1[T1].Invoke (T1 handler, UnityEngine.EventSystems.BaseEventData eventData) (at <00000000000000000000000000000000>:0)
Microsoft.MixedReality.Toolkit.BaseEventSystem.HandleEvent[T] (UnityEngine.EventSystems.BaseEventData eventData, UnityEngine.EventSystems.ExecuteEvents+EventFunction`1[T1] eventHandler) (at <00000000000000000000000000000000>:0)
Microsoft.MixedReality.Toolkit.Input.MixedRealityInputSystem.DispatchEventToGlobalListeners[T] (Microsoft.MixedReality.Toolkit.Input.BaseInputEventData baseInputEventData, UnityEngine.EventSystems.ExecuteEvents+EventFunction`1[T1] eventHandler) (at <00000000000000000000000000000000>:0)
Microsoft.MixedReality.Toolkit.Input.MixedRealityInputSystem.HandlePointerEvent[T] (UnityEngine.EventSystems.BaseEventData eventData, UnityEngine.EventSystems.ExecuteEvents+EventFunction`1[T1] eventHandler) (at <00000000000000000000000000000000>:0)
Microsoft.MixedReality.Toolkit.Input.MixedRealityInputSystem.RaisePointerUp (Microsoft.MixedReality.Toolkit.Input.IMixedRealityPointer pointer, Microsoft.MixedReality.Toolkit.Input.MixedRealityInputAction inputAction, Microsoft.MixedReality.Toolkit.Utilities.Handedness handedness, Microsoft.MixedReality.Toolkit.Input.IMixedRealityInputSource inputSource) (at <00000000000000000000000000000000>:0)
Microsoft.MixedReality.Toolkit.Input.BaseControllerPointer.OnDisable () (at <00000000000000000000000000000000>:0)
Microsoft.MixedReality.Toolkit.Input.BaseInputDeviceManager.RecyclePointers (Microsoft.MixedReality.Toolkit.Input.IMixedRealityInputSource inputSource) (at <00000000000000000000000000000000>:0)
Microsoft.MixedReality.Toolkit.Input.UnityInput.UnityTouchDeviceManager.RemoveTouchController (UnityEngine.Touch touch) (at <00000000000000000000000000000000>:0)
Microsoft.MixedReality.Toolkit.Input.UnityInput.UnityTouchDeviceManager.Update () (at <00000000000000000000000000000000>:0)
Microsoft.MixedReality.Toolkit.BaseDataProviderAccessCoreSystem.Update () (at <00000000000000000000000000000000>:0)
System.Action`1[T].Invoke (T obj) (at <00000000000000000000000000000000>:0)
Microsoft.MixedReality.Toolkit.MixedRealityToolkit.ExecuteOnAllServicesInOrder (System.Action`1[T] execute) (at <00000000000000000000000000000000>:0)
Microsoft.MixedReality.Toolkit.MixedRealityToolkit.UpdateAllServices () (at <00000000000000000000000000000000>:0)
Microsoft.MixedReality.Toolkit.BaseEventSystem:HandleEvent(BaseEventData, EventFunction`1)
Microsoft.MixedReality.Toolkit.Input.MixedRealityInputSystem:DispatchEventToGlobalListeners(BaseInputEventData, EventFunction`1)
Microsoft.MixedReality.Toolkit.Input.MixedRealityInputSystem:HandlePointerEvent(BaseEventData, EventFunction`1)
Microsoft.MixedReality.Toolkit.Input.MixedRealityInputSystem:RaisePointerUp(IMixedRealityPointer, MixedRealityInputAction, Handedness, IMixedRealityInputSource)
Microsoft.MixedReality.Toolkit.Input.BaseControllerPointer:OnDisable()
Microsoft.MixedReality.Toolkit.Input.BaseInputDeviceManager:RecyclePointers(IMixedRealityInputSource)
Microsoft.MixedReality.Toolkit.Input.UnityInput.UnityTouchDeviceManager:RemoveTouchController(Touch)
Microsoft.MixedReality.Toolkit.Input.UnityInput.UnityTouchDeviceManager:Update()
Microsoft.MixedReality.Toolkit.BaseDataProviderAccessCoreSystem:Update()
System.Action`1:Invoke(T)
Microsoft.MixedReality.Toolkit.MixedRealityToolkit:ExecuteOnAllServicesInOrder(Action`1)
Microsoft.MixedReality.Toolkit.MixedRealityToolkit:UpdateAllServices()

To reproduce

Steps to reproduce the behavior:

1. Click and drag and drop the object.
2. See error

Expected behavior

There should not be any prompting errors occurring

Screenshots

Your setup (please complete the following information)

• Unity Version 2020.3.30f1
• MRTK Version 2.8.2.0
• AR Foundation Version 4.1.10
• ARCore XR Plugin Version 4.1.10
• AR Subsystems Version 4.1.10
• XR Plugin Management Version 4.2.1

Target platform (please complete the following information)

• Deploying to Android (AR Foundation)