Fatal error due transit between levels

Hi, everyone, I have a problem with “Fatal error”.
My packaged game crashes, when i’m transiting from one map to another. I hope, someone can help me…

It also shows some logs
Fatal error: [File:D:/Build/++UE4/Sync/Engine/Source/Runtime/RenderCore/Private/RenderingThread.cpp] [Line: 836]
Rendering thread exception:
Fatal error!

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x00000000

0x00007ff61510071b ImpressionismProject.exe!FArrowSceneProxy::GetDynamicMeshElements() []
0x00007ff61402d320 ImpressionismProject.exe!FSceneRenderer::GatherDynamicMeshElements() []
0x00007ff61401ff3c ImpressionismProject.exe!FSceneRenderer::ComputeViewVisibility() []
0x00007ff614032ab3 ImpressionismProject.exe!FDeferredShadingSceneRenderer::InitViews() []
0x00007ff613b78dbc ImpressionismProject.exe!FDeferredShadingSceneRenderer::Render() []
0x00007ff613fc2705 ImpressionismProject.exe!FRendererModule::RenderPostResolvedSceneColorExtension() []
0x00007ff613fa2fd3 ImpressionismProject.exe!TBaseStaticDelegateInstance::ExecuteIfSafe() []
0x00007ff612ae9fd4 ImpressionismProject.exe!FNamedTaskThread::ProcessTasksNamedThread() []
0x00007ff612aea333 ImpressionismProject.exe!FNamedTaskThread::ProcessTasksUntilQuit() []
0x00007ff61472a204 ImpressionismProject.exe!RenderingThreadMain() []
0x00007ff61472eeff ImpressionismProject.exe!FRenderingThread::Run() []
0x00007ff612ef615f ImpressionismProject.exe!FRunnableThreadWin::Run() []
0x00007ff612eec0c1 ImpressionismProject.exe!FRunnableThreadWin::GuardedRun() []
0x00007ffe670581f4 KERNEL32.DLL!UnknownFunction []
0x00007ffe69e7a251 ntdll.dll!UnknownFunction []

I had a similar crash. mine was a arrowcomponent that was set to bIsEdiorOnly = false or HideInGame = false. . might be unrelated but i though id at least mention it.

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http://www.v5xy.com/?p=864