# UE4 Crashing in the project page **URL:** \ **Category:** Platform & Builds\ **Tags:** crash-editor, unreal-engine, crash, question\ **Created:** [August 18, 2016, 11:13am UTC](https://forums.unrealengine.com/t/ue4-crashing-in-the-project-page/367500 "2016-08-18T11:13:51Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![anonymous\_user\_9cf858051](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_9cf858051](https://forums.unrealengine.com/u/anonymous_user_9cf858051)\ **Post date:** [August 18, 2016, 11:13am UTC](https://forums.unrealengine.com/t/ue4-crashing-in-the-project-page/367500/1 "2016-08-18T11:13:51Z")
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. ---
**Author:** ![Sean\_Flint](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Sean\_Flint](https://forums.unrealengine.com/u/Sean_Flint)\ **Post date:** [August 18, 2016, 12:34pm UTC](https://forums.unrealengine.com/t/ue4-crashing-in-the-project-page/367500/2 "2016-08-18T12:34:44Z")
Hello, This is currently a known issue, which you can track the status of here: [Unreal Engine Issues and Bug Tracker (UE-30488)](https://issues.unrealengine.com/issue/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! ---
**Author:** ![anonymous\_user\_9cf858051](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_9cf858051](https://forums.unrealengine.com/u/anonymous_user_9cf858051)\ **Post date:** [August 18, 2016, 1:04pm UTC](https://forums.unrealengine.com/t/ue4-crashing-in-the-project-page/367500/3 "2016-08-18T13:04:20Z")
I think is the launcher, because even if I try to maximize the launcher window it crash! ---
**Author:** ![Sean\_Flint](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Sean\_Flint](https://forums.unrealengine.com/u/Sean_Flint)\ **Post date:** [August 18, 2016, 1:11pm UTC](https://forums.unrealengine.com/t/ue4-crashing-in-the-project-page/367500/4 "2016-08-18T13:11:09Z")
Thanks for the additional information. I’ll add that to the report. ---
**Author:** ![anonymous\_user\_9cf858051](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_9cf858051](https://forums.unrealengine.com/u/anonymous_user_9cf858051)\ **Post date:** [August 18, 2016, 1:13pm UTC](https://forums.unrealengine.com/t/ue4-crashing-in-the-project-page/367500/5 "2016-08-18T13:13:33Z")
there is no way I can use ue4 so? I need to start a important project. ---
**Author:** ![anonymous\_user\_9cf858051](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_9cf858051](https://forums.unrealengine.com/u/anonymous_user_9cf858051)\ **Post date:** [August 18, 2016, 1:14pm UTC](https://forums.unrealengine.com/t/ue4-crashing-in-the-project-page/367500/6 "2016-08-18T13:14:03Z")
There is a way to download an older launcher? ---
**Author:** ![Sean\_Flint](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Sean\_Flint](https://forums.unrealengine.com/u/Sean_Flint)\ **Post date:** [August 18, 2016, 1:19pm UTC](https://forums.unrealengine.com/t/ue4-crashing-in-the-project-page/367500/7 "2016-08-18T13:19:17Z")
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. ---
**Author:** ![anonymous\_user\_9cf858051](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_9cf858051](https://forums.unrealengine.com/u/anonymous_user_9cf858051)\ **Post date:** [August 18, 2016, 1:24pm UTC](https://forums.unrealengine.com/t/ue4-crashing-in-the-project-page/367500/8 "2016-08-18T13:24:09Z")
depends on launcher! it is that who is crashing! I need an older epic games launcher ---
**Author:** ![Sean\_Flint](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Sean\_Flint](https://forums.unrealengine.com/u/Sean_Flint)\ **Post date:** [August 18, 2016, 1:31pm UTC](https://forums.unrealengine.com/t/ue4-crashing-in-the-project-page/367500/9 "2016-08-18T13:31:38Z")
If your issue lies with the launcher, please visit [http://help.epicgames.com/](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! ---
**Author:** ![anonymous\_user\_9cf858051](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_9cf858051](https://forums.unrealengine.com/u/anonymous_user_9cf858051)\ **Post date:** [August 18, 2016, 1:33pm UTC](https://forums.unrealengine.com/t/ue4-crashing-in-the-project-page/367500/10 "2016-08-18T13:33:08Z")
Thanks man! I appreciate that