Mesh Slicer Error

Hello we get the below error with a crash on IOS only sometimes (it seems to correlate with complex room scans): "Gu::ConvexMesh::checkHullPolygons: Hull seems to have opened volume or do (some) faces have reversed winding?"

Below is more info.

[Physics.PhysX] Gu::ConvexMesh::checkHullPolygons: Hull seems to have opened volume or do (some) faces have reversed winding?

UnityEngine.Object:Instantiate(Object, Transform, Boolean)

UnityEngine.Object:Instantiate(T, Transform, Boolean)

BzKovSoft.ObjectSlicer.BzSliceableBase:GetNewObjects(GameObject&, GameObject&)

BzKovSoft.ObjectSlicer.BzSliceableBase:ApplyChanges(SliceTry)

BzKovSoft.ObjectSlicer.BzSliceableBase:SliceTryFinished(SliceTry)

NavMeshSlicer:SliceMesh(GameObject[])

NavMeshSpatialManager:SliceMesh()

<ConstructMeshCoroutine>d__14:MoveNext()

UnityEngine.SetupCoroutine:InvokeMoveNext(IEnumerator, IntPtr)

AutoBoundarySetup:LockBoundary()

UnityEngine.Events.UnityAction:Invoke()

UnityEngine.Events.UnityEvent:Invoke()

UnityEngine.EventSystems.EventFunction`1:Invoke(T1, BaseEventData)

UnityEngine.EventSystems.ExecuteEvents:Execute(GameObject, BaseEventData, EventFunction`1)

UnityEngine.EventSystems.StandaloneInputModule:ProcessTouchPress(PointerEventData, Boolean, Boolean)

UnityEngine.EventSystems.StandaloneInputModule:ProcessTouchEvents()

UnityEngine.EventSystems.StandaloneInputModule:Process()

[/Users/bokken/build/output/unity/physx/physx/source/physxcooking/src/convex/ConvexHullBuilder.cpp line 338]

(Filename: /Users/bokken/build/output/unity/physx/physx/source/physxcooking/src/convex/ConvexHullBuilder.cpp Line: 338)

[Physics.PhysX] Gu::ConvexMesh::loadConvexHull: convex hull init failed!