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Unreal Engine Crashes upon opening fortnite with Epic Games Launcher! How can I fix this?

This error occurred for the third time now... I'm trying to launch Fortnite on MAC with the Epic Games Launcher and after the screen with the four Fortnite heroes appears, a window pops up which says: "Unreal Engine 4 Crash Report". The first time this error disappeared after 3 days, the second time after 1 day without me doing anything. This time it's crashing since 2 days now and it's pretty annoying. Could anybody pls help me with this problem?

This is what the Crash Report says:

SEGV_MAPERR at 0x1c9348000

FCrc::MemCrc_DEPRECATED(void const*, int, unsigned int) Address = 0x10803d314 (filename not found) [in FortniteClient-Mac-Shipping] TMetalBaseShader::TMetalBaseShader(TArray const&) Address = 0x107ee7c2e (filename not found) [in FortniteClient-Mac-Shipping] FMetalDynamicRHI::RHICreateVertexShader(TArray const&) Address = 0x107ee9182 (filename not found) [in FortniteClient-Mac-Shipping] FShaderCache::InternalSubmitShader(FShaderCacheKey const&, TArray const&, FShaderCacheState*) Address = 0x108517834 (filename not found) [in FortniteClient-Mac-Shipping] FShaderCache::InternalLogShader(EShaderPlatform, EShaderFrequency, FSHAHash, unsigned int, TArray const&, FShaderCacheState*)::EURCMacro_LogShader::DoTask(ENamedThreads::Type, TRefCountPtr const&) Address = 0x1085127bc (filename not found) [in FortniteClient-Mac-Shipping] FShaderCache::InternalLogShader(EShaderPlatform, EShaderFrequency, FSHAHash, unsigned int, TArray const&, FShaderCacheState*) Address = 0x10850e2fd (filename not found) [in FortniteClient-Mac-Shipping] FShaderCache::LoadBinaryCache(FShaderCacheState*) Address = 0x10850d8d8 (filename not found) [in FortniteClient-Mac-Shipping] RHIInit(bool) Address = 0x1085ad651 (filename not found) [in FortniteClient-Mac-Shipping] FEngineLoop::PreInit(wchar_t const*) Address = 0x106eea282 (filename not found) [in FortniteClient-Mac-Shipping] GuardedMain(wchar_t const*) Address = 0x106ef029a (filename not found) [in FortniteClient-Mac-Shipping] -[UE4AppDelegate runGameThread:] Address = 0x106ef6217 (filename not found) [in FortniteClient-Mac-Shipping] -[FCocoaGameThread main] Address = 0x107fa8390 (filename not found) [in FortniteClient-Mac-Shipping] Unknown() Address = 0x7fffa6bc08ad (filename not found) [in Foundation] _pthread_body Address = 0x7fffbab3693b (filename not found) [in libsystem_pthread.dylib] _pthread_body Address = 0x7fffbab36887 (filename not found) [in libsystem_pthread.dylib] thread_start Address = 0x7fffbab3608d (filename not found) [in libsystem_pthread.dylib]

Product Version: Epic Games Launcher
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asked Sep 07 '17 at 12:01 PM in Bug Reports

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Hi Federe,

For Fortnite issues, please visit http://fortnitehelp.epicgames.com/

On the site, there is an email us button you can use to get in touch with someone from the Fortnite team who can assist you with your issue.

Have a great day

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answered Sep 07 '17 at 12:09 PM

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Sean L ♦♦ STAFF
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