PhysX crash when SetMaterial is called

[2016.03.14-18.55.51:380][899]LogLinux: === Critical error: ===
Unhandled Exception: SIGSEGV: invalid attempt to access memory at address 0x00000020

[2016.03.14-18.55.51:380][899]LogLinux: Fatal error!

[Callstack]  03  0x00007f20543365f0  CommonLinuxCrashHandler(FGenericCrashContext const&)
[Callstack]  04  0x00007f205f721c88  PlatformCrashHandler(int, siginfo_t*, void*)
[Callstack]  05  0x00007f20602c7d10  /lib/x86_64-linux-gnu/libpthread.so.0(+0x10d10) [0x7f20602c7d10]
[Callstack]  06  0x00007f205d609be5  physx::shdfnd::atomicDecrement(int volatile*)
[Callstack]  07  0x00007f205d4f0b21  /home/doug/Documents/github/4.11_2898788/Engine/Binaries/Linux/libUE4Editor-Engine.so(+0x27c2b21) [0x7f205d4f0b21]
[Callstack]  08  0x00007f205c73a61a  FBodyInstance::ApplyMaterialToShape_AssumesLocked(physx::PxShape*, physx::PxMaterial*, TArray<UPhysicalMaterial*, FDefaultAllocator> const&, bool)
[Callstack]  09  0x00007f205c73ac73  FBodyInstance::ApplyMaterialToInstanceShapes_AssumesLocked(physx::PxMaterial*, TArray<UPhysicalMaterial*, FDefaultAllocator>&)
[Callstack]  10  0x00007f205c72142a  FBodyInstance::ExecuteOnPhysicsReadWrite(TFunctionRef<void ()>) const
[Callstack]  11  0x00007f205c721beb  FBodyInstance::UpdatePhysicalMaterials()
[Callstack]  12  0x00007f1fd79cfaa0  UFlareSpacecraftComponent::SetupComponentMesh()
[Callstack]  13  0x00007f1fd79bdccc  UFlareEngine::Initialize(FFlareSpacecraftComponentSave const*, UFlareCompany*, AFlareSpacecraftPawn*, bool)
[Callstack]  14  0x00007f1fd79cb59e  AFlareSpacecraft::Load(FFlareSpacecraftSave const&)
[Callstack]  15  0x00007f1fd7954d46  UFlareSector::LoadSpacecraft(FFlareSpacecraftSave const&)
[Callstack]  16  0x00007f1fd7954b58  UFlareSector::Load(UFlareSimulatedSector*, FFlareSectorSave const&)
[Callstack]  17  0x00007f1fd7936f02  AFlareGame::ActivateSector(AController*, UFlareSimulatedSector*)
[Callstack]  18  0x00007f1fd7982f96  AFlarePlayerController::BeginPlay()
[Callstack]  19  0x00007f205ccddb5a  AWorldSettings::NotifyBeginPlay()
[Callstack]  20  0x00007f205c241866  AGameMode::HandleMatchHasStarted()
[Callstack]  21  0x00007f205c2421ff  AGameMode::SetMatchState(FName)
[Callstack]  22  0x00007f1fd7936d71  AFlareGame::StartPlay()
[Callstack]  23  0x00007f205ccc7d89  UWorld::BeginPlay()
[Callstack]  24  0x00007f205c23b574  UGameInstance::StartPIEGameInstance(ULocalPlayer*, bool, bool, bool)
[Callstack]  25  0x00007f2055cc7ced  UEditorEngine::CreatePIEGameInstance(int, bool, bool, bool, bool, float)
[Callstack]  26  0x00007f2055cbf9b3  UEditorEngine::PlayInEditor(UWorld*, bool)
[Callstack]  27  0x00007f2055cb065c  UEditorEngine::StartQueuedPlayMapRequest()
[Callstack]  28  0x00007f20556e3ce7  UEditorEngine::Tick(float, bool)
[Callstack]  29  0x00007f205604ec70  UUnrealEdEngine::Tick(float, bool)
[Callstack]  30  0x00000000004236f0  FEngineLoop::Tick() [Runtime/Core/Public/Stats/Stats2.h, line 1651]
[Callstack]  31  0x000000000042a863  GuardedMain(wchar_t const*) [/home/doug/Documents/github/4.11_2898788/Engine/Source/Runtime/Launch/Private/Launch.cpp, line 51]
[Callstack]  32  0x00007f205433712e  CommonLinuxMain(int, char**, int (*)(wchar_t const*))
[Callstack]  33  0x00007f20532b4a40  /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0) [0x7f20532b4a40]
[Callstack]  34  0x0000000000413a19  /home/doug/Documents/github/4.11_2898788/Engine/Binaries/Linux/UE4Editor(_start+0x29) [0x413a19]

MachineId:9FA88CA44B7C623122B0039D6C8BA1B0
EpicAccountId:c807849e05a0413d99e379f2802cae9c

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

PhysX3CommonPROFILE_x64
PhysX3PROFILE_x64
UE4Editor_Engine
UE4Editor_Engine
UE4Editor_Engine
UE4Editor_Engine
UE4Editor_Engine
UE4Editor_Engine
UE4Editor_MyProject!UFlareSpacecraftComponent::SetupComponentMesh() [d:\projects\userprojects\physxcompcrash\source\MyProject\spacecrafts\flarespacecraftcomponent.cpp:165]
UE4Editor_MyProject!UFlareEngine::Initialize() [d:\projects\userprojects\physxcompcrash\source\MyProject\spacecrafts\flareengine.cpp:28]
UE4Editor_MyProject!AFlareSpacecraftPawn::ReloadPart() [d:\projects\userprojects\physxcompcrash\source\MyProject\spacecrafts\flarespacecraftpawn.cpp:107]
UE4Editor_MyProject!AFlareSpacecraft::Load() [d:\projects\userprojects\physxcompcrash\source\MyProject\spacecrafts\flarespacecraft.cpp:368]
UE4Editor_MyProject!UFlareSector::LoadSpacecraft() [d:\projects\userprojects\physxcompcrash\source\MyProject\game\flaresector.cpp:158]
UE4Editor_MyProject!UFlareSector::Load() [d:\projects\userprojects\physxcompcrash\source\MyProject\game\flaresector.cpp:31]
UE4Editor_MyProject!AFlareGame::ActivateSector() [d:\projects\userprojects\physxcompcrash\source\MyProject\game\flaregame.cpp:126]
UE4Editor_MyProject!AFlarePlayerController::BeginPlay() [d:\projects\userprojects\physxcompcrash\source\MyProject\player\flareplayercontroller.cpp:60]
UE4Editor_Engine
UE4Editor_Engine
UE4Editor_Engine
UE4Editor_Engine
UE4Editor_Engine
UE4Editor_Engine
UE4Editor_UnrealEd
UE4Editor_UnrealEd
UE4Editor_UnrealEd
UE4Editor_UnrealEd
UE4Editor_UnrealEd
UE4Editor
UE4Editor
UE4Editor
UE4Editor
UE4Editor
kernel32
ntdll