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()