UE4 Crashing in the project page

Development Platform & Builds
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1

Hi
this is the following error when it’s crashing:

Fatal error: [File:D:\Build++UE4+Release-4.12+Compile\Sync\Engine\Source\Runtime\Windows\D3D11RHI\Private\D3D11Util.cpp] [Line: 227]
SwapChain->ResizeBuffers(1,SizeX,SizeY,GetRenderTargetFormat(PixelFormat),DXGI_SWAP_CHAIN_FLAG_ALLOW_MODE_SWITCH) failed
at D:\Build++UE4+Release-4.12+Compile\Sync\Engine\Source\Runtime\Windows\D3D11RHI\Private\D3D11Viewport.cpp:215
with error DXGI_ERROR_INVALID_CALL
UE4Editor_Core!FDebug::AssertFailed() [d:\build++ue4+release-4.12+compile\sync\engine\source\runtime\core\private\misc\outputdevice.cpp:440]
UE4Editor_D3D11RHI!VerifyD3D11Result() [d:\build++ue4+release-4.12+compile\sync\engine\source\runtime\windows\d3d11rhi\private\d3d11util.cpp:227]
UE4Editor_D3D11RHI!FD3D11Viewport::Resize() [d:\build++ue4+release-4.12+compile\sync\engine\source\runtime\windows\d3d11rhi\private\d3d11viewport.cpp:217]
UE4Editor_SlateRHIRenderer!FSlateRHIRenderer::ConditionalResizeViewport() [d:\build++ue4+release-4.12+compile\sync\engine\source\runtime\slaterhirenderer\private\slaterhirenderer.cpp:326]
UE4Editor_SlateRHIRenderer!FSlateRHIRenderer::DrawWindows_Private() [d:\build++ue4+release-4.12+compile\sync\engine\source\runtime\slaterhirenderer\private\slaterhirenderer.cpp:631]
UE4Editor_Slate!FSlateApplication::PrivateDrawWindows() [d:\build++ue4+release-4.12+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:1258]
UE4Editor_Slate!FSlateApplication::DrawWindows() [d:\build++ue4+release-4.12+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:969]
UE4Editor_Slate!FSlateApplication::TickApplication() [d:\build++ue4+release-4.12+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:1558]
UE4Editor_Slate!FSlateApplication::Tick() [d:\build++ue4+release-4.12+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:1350]
UE4Editor!FEngineLoop::Tick() [d:\build++ue4+release-4.12+compile\sync\engine\source\runtime\launch\private\launchengineloop.cpp:2810]
UE4Editor!GuardedMain() [d:\build++ue4+release-4.12+compile\sync\engine\source\runtime\launch\private\launch.cpp:148]
UE4Editor!GuardedMainWrapper() [d:\build++ue4+release-4.12+compile\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:126]
UE4Editor!WinMain() [d:\build++ue4+release-4.12+compile\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:200]
UE4Editor!__scrt_common_main_seh() [f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl:264]
kernel32
ntdll

my computer specs are this:

OS:Windows 10 Home

Processor: Intel(R) Xeon(R) CPU E3-1231 v3 @ 3.40GHZ

Ram:16 Giga

Video Card:Msi Geforce GTX 970 Gaming 4G

Motherboard:Msi Z87 G45

I was able to use UE4 witouth problem since before I upgraded the Epic Games Launcher few day ago.

2

Hello,

This is currently a known issue, which you can track the status of here: Unreal Engine Issues and Bug Tracker (UE-30488)

We are looking for a repro case for this issue, so if you are able to provide a detailed list of repro steps, or a project where the crash is occurring consistently, that would be great.

Have a great day!

3

I think is the launcher, because even if I try to maximize the launcher window it crash!

4

Thanks for the additional information. I’ll add that to the report.

5

there is no way I can use ue4 so? I need to start a important project.

6

There is a way to download an older launcher?

7

At this time there are no known workarounds for this issue. However, you can try a couple of things:

  1. Ensure that you are using the latest graphics card drivers.
  2. Try using an older version, such as 4.10 or 4.11, or even giving 4.13 Preview a shot.
8

depends on launcher! it is that who is crashing! I need an older epic games launcher

9

If your issue lies with the launcher, please visit http://help.epicgames.com/

You can use the Email Us button to get in touch with one of our Launcher support staff to see what options you have.

Have a great day!

10

Thanks man! I appreciate that