Ue4 4.15.1 crashes paticle system

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1

When I created a new particle system, it crashes as soon as the system is turned on

Basic example Paticle will run, but crashes when you create a new module and press required in that module.
It will run on the new particle system, but if you press required as above, crashes will pop up.

Unreal Engine is exiting due to D3D device being lost. (Error: 0x887A0006 - ‘HUNG’)
I found that there is a conflict with geforce 560, is it true?

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Fatal error: [File:D:\Build++UE4+Release4.15+Compile\Sync\Engine\Source\Runtime\Windows\D3D11RHI\Private\D3D11Util.cpp] [Line: 176]
Unreal Engine is exiting due to D3D device being lost. (Error: 0x887A0006 - ‘HUNG’)
UE4Editor_Core!FDebug::AssertFailed() [d:\build++ue4+release-4.15+compile\sync\engine\source\runtime\core\private\misc\assertionmacros.cpp:349]
UE4Editor_D3D11RHI!TerminateOnDeviceRemoved() [d:\build++ue4+release-4.15+compile\sync\engine\source\runtime\windows\d3d11rhi\private\d3d11util.cpp:176]
UE4Editor_D3D11RHI!VerifyD3D11Result() [d:\build++ue4+release-4.15+compile\sync\engine\source\runtime\windows\d3d11rhi\private\d3d11util.cpp:225]
UE4Editor_D3D11RHI!FD3D11DynamicRHI::RHICreateUniformBuffer() [d:\build++ue4+release-4.15+compile\sync\engine\source\runtime\windows\d3d11rhi\private\d3d11uniformbuffer.cpp:159]
UE4Editor_Engine!RHICreateUniformBuffer() [d:\build++ue4+release-4.15+compile\sync\engine\source\runtime\rhi\public\dynamicrhi.h:1328]
UE4Editor_Engine!TUniformBufferRef::CreateUniformBufferImmediate() [d:\build++ue4+release-4.15+compile\sync\engine\source\runtime\rendercore\public\uniformbuffer.h:128]
UE4Editor_Engine!FDynamicSpriteEmitterData::GetDynamicMeshElementsEmitter() [d:\build++ue4+release-4.15+compile\sync\engine\source\runtime\engine\private\particles\particlesystemrender.cpp:1149]
UE4Editor_Engine!FParticleSystemSceneProxy::GetDynamicMeshElements() [d:\build++ue4+release-4.15+compile\sync\engine\source\runtime\engine\private\particles\particlesystemrender.cpp:6892]
UE4Editor_Renderer!FSceneRenderer::GatherDynamicMeshElements() [d:\build++ue4+release-4.15+compile\sync\engine\source\runtime\renderer\private\scenevisibility.cpp:1958]
UE4Editor_Renderer!FSceneRenderer::ComputeViewVisibility() [d:\build++ue4+release-4.15+compile\sync\engine\source\runtime\renderer\private\scenevisibility.cpp:2617]
UE4Editor_Renderer!FDeferredShadingSceneRenderer::InitViews() [d:\build++ue4+release-4.15+compile\sync\engine\source\runtime\renderer\private\scenevisibility.cpp:2860]
UE4Editor_Renderer!FDeferredShadingSceneRenderer::Render() [d:\build++ue4+release-4.15+compile\sync\engine\source\runtime\renderer\private\deferredshadingrenderer.cpp:589]
UE4Editor_Renderer!RenderViewFamily_RenderThread() [d:\build++ue4+release-4.15+compile\sync\engine\source\runtime\renderer\private\scenerendering.cpp:1728]
UE4Editor_Renderer!TGraphTask<FRendererModule::BeginRenderingViewFamily'::21’::EURCMacro_FDrawSceneCommand>::ExecuteTask() [d:\build++ue4+release-4.15+compile\sync\engine\source\runtime\core\public\async\taskgraphinterfaces.h:883]
UE4Editor_Core!FNamedTaskThread::ProcessTasksNamedThread() [d:\build++ue4+release-4.15+compile\sync\engine\source\runtime\core\private\async\taskgraph.cpp:954]
UE4Editor_Core!FNamedTaskThread::ProcessTasksUntilQuit() [d:\build++ue4+release-4.15+compile\sync\engine\source\runtime\core\private\async\taskgraph.cpp:701]
UE4Editor_RenderCore!RenderingThreadMain() [d:\build++ue4+release-4.15+compile\sync\engine\source\runtime\rendercore\private\renderingthread.cpp:325]
UE4Editor_RenderCore!FRenderingThread::Run() [d:\build++ue4+release-4.15+compile\sync\engine\source\runtime\rendercore\private\renderingthread.cpp:459]
UE4Editor_Core!FRunnableThreadWin::Run() [d:\build++ue4+release-4.15+compile\sync\engine\source\runtime\core\private\windows\windowsrunnablethread.cpp:76]

2

Hi Achromatic co,

You are getting one of the d3d hung issue and we have made ticket for all of the different cases: Unreal Engine Issues and Bug Tracker (UE-42280)

In a future engine update we plan to implement tools that will help give better information regarding crashes like this.
For now Look at the ticket for a small list of workarounds that may help the issue.

If you want a quick and easy workaround that seemed to help a lot of people do the following.

Open the editor, open the Content Browser, select View Options (eye icon bottom right), and uncheck Real-Time Thumbnails. This was provided by a user (IronicParadox)

You are getting the crash specifically in cascade so that workaround may not apply but still worth a shot.

Cheers,

Ed