UE4 Editor launch crash "Filename not found" (Mac OSX)

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 SEGV_MAPERR at 0x3

FGenericPlatformMisc::RaiseException(unsigned int) Address = 0x104758c9b (filename not found) [in UE4Editor-Core.dylib]
FOutputDeviceMacError::Serialize(wchar_t const*, ELogVerbosity::Type, FName const&) Address = 0x10497025f (filename not found) [in UE4Editor-Core.dylib]
FOutputDevice::Logf(wchar_t const*, ...) Address = 0x104a5694d (filename not found) [in UE4Editor-Core.dylib]
FDebug::AssertFailed(char const*, char const*, int, wchar_t const*, ...) Address = 0x1049a981e (filename not found) [in UE4Editor-Core.dylib]
FMetalRenderPipelineDesc::CreatePipelineStateForBoundShaderState(FMetalBoundShaderState*, FMetalHashedVertexDescriptor const&) const Address = 0x138ad751a (filename not found) [in UE4Editor-MetalRHI.dylib]
FMetalBoundShaderState::PrepareToDraw(FMetalHashedVertexDescriptor const&, FMetalRenderPipelineDesc const&) Address = 0x138aa2c92 (filename not found) [in UE4Editor-MetalRHI.dylib]
FMetalContext::PrepareToDraw(unsigned int, EMetalIndexType) Address = 0x138a9ca28 (filename not found) [in UE4Editor-MetalRHI.dylib]
FMetalRHICommandContext::RHIEndDrawPrimitiveUP() Address = 0x138a82408 (filename not found) [in UE4Editor-MetalRHI.dylib]
DrawPrimitiveUP(FRHICommandList&, unsigned int, unsigned int, void const*, unsigned int) Address = 0x115d77db9 (filename not found) [in UE4Editor-Renderer.dylib]
FProjectedShadowInfo::RenderProjection(FRHICommandListImmediate&, int, FViewInfo const*, bool, bool) const Address = 0x1164d3ef7 (filename not found) [in UE4Editor-Renderer.dylib]
FSceneRenderer::RenderShadowProjections(FRHICommandListImmediate&, FLightSceneInfo const*, IPooledRenderTarget*, bool, bool) Address = 0x1164d7cf4 (filename not found) [in UE4Editor-Renderer.dylib]
FDeferredShadingSceneRenderer::RenderShadowProjections(FRHICommandListImmediate&, FLightSceneInfo const*, IPooledRenderTarget*, bool&) Address = 0x1164d8396 (filename not found) [in UE4Editor-Renderer.dylib]
FDeferredShadingSceneRenderer::RenderLights(FRHICommandListImmediate&) Address = 0x115ed66c3 (filename not found) [in UE4Editor-Renderer.dylib]
FDeferredShadingSceneRenderer::Render(FRHICommandListImmediate&) Address = 0x115d83a11 (filename not found) [in UE4Editor-Renderer.dylib]
FRendererModule::BeginRenderingViewFamily(FCanvas*, FSceneViewFamily*)::EURCMacro_FDrawSceneCommand::DoTask(ENamedThreads::Type, TRefCountPtr<FGraphEvent> const&) Address = 0x11640e3d0 (filename not found) [in UE4Editor-Renderer.dylib]
TGraphTask<FRendererModule::BeginRenderingViewFamily(FCanvas*, FSceneViewFamily*)::EURCMacro_FDrawSceneCommand>::ExecuteTask(TArray<FBaseGraphTask*, FDefaultAllocator>&, ENamedThreads::Type) Address = 0x116472760 (filename not found) [in UE4Editor-Renderer.dylib]
FNamedTaskThread::ProcessTasksNamedThread(int, bool) Address = 0x10477c1cf (filename not found) [in UE4Editor-Core.dylib]
FNamedTaskThread::ProcessTasksUntilQuit(int) Address = 0x10477b1d8 (filename not found) [in UE4Editor-Core.dylib]
FTaskGraphImplementation::ProcessThreadUntilRequestReturn(ENamedThreads::Type) Address = 0x104776f61 (filename not found) [in UE4Editor-Core.dylib]
RenderingThreadMain(FEvent*) Address = 0x10b701cb1 (filename not found) [in UE4Editor-RenderCore.dylib]
FRenderingThread::Run() Address = 0x10b7175d7 (filename not found) [in UE4Editor-RenderCore.dylib]
FRunnableThreadPThread::Run() Address = 0x1047fac90 (filename not found) [in UE4Editor-Core.dylib]
FRunnableThreadPThread::_ThreadProc(void*) Address = 0x10479cb80 (filename not found) [in UE4Editor-Core.dylib]
_pthread_body Address = 0x7fff9d04693b (filename not found) [in libsystem_pthread.dylib]
_pthread_body Address = 0x7fff9d046887 (filename not found) [in libsystem_pthread.dylib]
thread_start Address = 0x7fff9d04608d (filename not found) [in libsystem_pthread.dylib]

I’ve been trying to create a project on UE4 for a while, but whenever I try to open a new, or old project, the editor crashes. I verified the engine and all that, but I can’t find the problem, much less a solution to said problem. I’d be grateful for any help, thanks.

I am also having this problem on Mac

Turns out this issue is related Unreal 4.17.0 Crashes on Project Load - Programming & Scripting - Unreal Engine Forums

Following these instructions, I was able to make the editor launch on my mac

  1. Disconnect external monitors (requirement for #2)

  2. Using GfxCardStatus, set my MBP to integrated graphics

  3. Launch Editor & Load Project

  4. Using GfxCardStatus, set my MBP to dynamic graphics

  5. Re-attach external monitors

I’m also having the issue.