Attempting to set skeletal mesh on vehicle blueprint during PIE crashes editor

Switching the skeletal mesh of an actor during PIE crashes the editor.

Frequency: 5/5

Crashreporter: N/A

1. Download, unzip, open project at link:

[Link Removed]

2. Press PIE
3. Press '4' twice to switch skeletal mesh two times

Results:

Editor crashes

Expected:

Skeletal mesh switches.

MachineId:4E82586D46B558EA69EF0EAA821297B1
EpicAccountId:2e342bbd0e92480fa71bf4505b6a81c3

Access violation - code c0000005 (first/second chance not available)

UE4Editor_Engine!physx::PxVehicleUpdate::updatePost() [d:\ori.cohen_g6217_framework\engine\source\thirdparty\physx\physx-3.3\source\physxvehicle\src\pxvehicleupdate.cpp:6451]
UE4Editor_Engine!physx::PxVehicleUpdate::updateDrive4W() [d:\ori.cohen_g6217_framework\engine\source\thirdparty\physx\physx-3.3\source\physxvehicle\src\pxvehicleupdate.cpp:4709]
UE4Editor_Engine!physx::PxVehicleUpdate::update() [d:\ori.cohen_g6217_framework\engine\source\thirdparty\physx\physx-3.3\source\physxvehicle\src\pxvehicleupdate.cpp:6309]
UE4Editor_Engine!physx::PxVehicleUpdates() [d:\ori.cohen_g6217_framework\engine\source\thirdparty\physx\physx-3.3\source\physxvehicle\src\pxvehicleupdate.cpp:6476]
UE4Editor_Engine!FPhysXVehicleManager::UpdateVehicles() [d:\buildfarm\buildmachine_++ue4+release-4.11\engine\source\runtime\engine\private\vehicles\physxvehiclemanager.cpp:315]
UE4Editor_Engine!FPhysXVehicleManager::Update() [d:\buildfarm\buildmachine_++ue4+release-4.11\engine\source\runtime\engine\private\vehicles\physxvehiclemanager.cpp:302]
UE4Editor_Engine!FPhysSubstepTask::SubstepSimulationStart() [d:\buildfarm\buildmachine_++ue4+release-4.11\engine\source\runtime\engine\private\physicsengine\physsubsteptasks.cpp:395]
UE4Editor_Engine!TBaseRawMethodDelegateInstance<0,FPhysSubstepTask,void __cdecl(void),PhysXCompletionTask * __ptr64>::ExecuteIfSafe() [d:\buildfarm\buildmachine_++ue4+release-4.11\engine\source\runtime\core\public\delegates\delegateinstancesimpl_variadics.inl:642]
UE4Editor_Engine!TGraphTask<FSimpleDelegateGraphTask>::ExecuteTask() [d:\buildfarm\buildmachine_++ue4+release-4.11\engine\source\runtime\core\public\async\taskgraphinterfaces.h:886]
UE4Editor_Core!FTaskThreadAnyThread::ProcessTasks() [d:\buildfarm\buildmachine_++ue4+release-4.11\engine\source\runtime\core\private\async\taskgraph.cpp:1088]
UE4Editor_Core!FTaskThreadAnyThread::ProcessTasksUntilQuit() [d:\buildfarm\buildmachine_++ue4+release-4.11\engine\source\runtime\core\private\async\taskgraph.cpp:982]
UE4Editor_Core!FTaskThreadBase::Run() [d:\buildfarm\buildmachine_++ue4+release-4.11\engine\source\runtime\core\private\async\taskgraph.cpp:469]
UE4Editor_Core!FRunnableThreadWin::Run() [d:\buildfarm\buildmachine_++ue4+release-4.11\engine\source\runtime\core\private\windows\windowsrunnablethread.cpp:74]