Editor crash wher i start with one vehicle BP

hi i have problem, when i start game with one vehicle BP placed on level, editor always crash!!! but if i remove it from level all work fine, this start happen after reimporting my vehicle skeletal mesh(i add some new bones to my vehicle in maya), i try fix this by deleting all skeletal mesh, physics asset, animation BP an create this from scratch but it not help, what can i do?

MachineId:EE53496C4BC152260084508A8A2FD627
EpicAccountId:064d06d57e66465fad3ac137451effa6

Unknown exception - code 00000001 (first/second chance not available)

Assertion failed: NumChassisShapes >= 1 [File:D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.7\Engine\Source\Runtime\Engine\Private\Vehicles\WheeledVehicleMovementComponent.cpp] [Line: 377]

KERNELBASE + 37901 bytes
UE4Editor_Core!FOutputDeviceWindowsError::Serialize() + 292 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\core\private\windows\windowsplatformoutputdevices.cpp:95]
UE4Editor_Core!FOutputDevice::Logf__VA() + 248 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\core\private\misc\outputdevice.cpp:144]
UE4Editor_Core!FDebug::AssertFailed() + 1079 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\core\private\misc\outputdevice.cpp:224]
UE4Editor_Engine!UWheeledVehicleMovementComponent::SetupWheels() + 1436 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\engine\private\vehicles\wheeledvehiclemovementcomponent.cpp:379]
UE4Editor_Engine!UWheeledVehicleMovementComponent4W::SetupVehicle() + 287 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\engine\private\vehicles\wheeledvehiclemovementcomponent4w.cpp:279]
UE4Editor_Engine!UWheeledVehicleMovementComponent::CreateVehicle() + 299 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\engine\private\vehicles\wheeledvehiclemovementcomponent.cpp:188]
UE4Editor_Engine!UWheeledVehicleMovementComponent::CreatePhysicsState() + 115 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\engine\private\vehicles\wheeledvehiclemovementcomponent.cpp:622]
UE4Editor_Engine!UActorComponent::ExecuteRegisterEvents() + 397 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\engine\private\actorcomponent.cpp:957]
UE4Editor_Engine!UActorComponent::RegisterComponentWithWorld() + 942 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\engine\private\actorcomponent.cpp:749]
UE4Editor_Engine!AActor::IncrementalRegisterComponents() + 637 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\engine\private\actor.cpp:3271]
UE4Editor_Engine!ULevel::IncrementalUpdateComponents() + 275 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\engine\private\level.cpp:720]
UE4Editor_Engine!UWorld::UpdateWorldComponents() + 653 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\engine\private\world.cpp:1205]
UE4Editor_Engine!UWorld::InitializeActorsForPlay() + 754 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\engine\private\world.cpp:2831]
UE4Editor_Engine!UGameInstance::StartPIEGameInstance() + 1079 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\engine\private\gameinstance.cpp:195]
UE4Editor_UnrealEd!UEditorEngine::CreatePIEGameInstance() + 8708 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\editor\unrealed\private\playlevel.cpp:2861]
UE4Editor_UnrealEd!UEditorEngine::PlayInEditor() + 7184 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\editor\unrealed\private\playlevel.cpp:2212]
UE4Editor_UnrealEd!UEditorEngine::StartQueuedPlayMapRequest() + 643 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\editor\unrealed\private\playlevel.cpp:974]
UE4Editor_UnrealEd!UEditorEngine::Tick() + 3604 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\editor\unrealed\private\editor.cpp:1226]
UE4Editor_UnrealEd!UUnrealEdEngine::Tick() + 22 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\editor\unrealed\private\unrealedengine.cpp:347]
UE4Editor!FEngineLoop::Tick() + 4179 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\launch\private\launchengineloop.cpp:2257]
UE4Editor!GuardedMain() + 1404 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\launch\private\launch.cpp:142]
UE4Editor!GuardedMainWrapper() + 26 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\launch\private\windows\launchwindows.cpp:126]
UE4Editor!WinMain() + 249 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\launch\private\windows\launchwindows.cpp:202]
UE4Editor!__tmainCRTStartup() + 329 bytes [f:\dd\vctools\crt\crtw32\dllstuff\crtexe.c:618]

i find fix, problem be in wheels class, i probably set checkbox on Don’t create shape, so i set it false(default) and crashes stops