Description

This is a frequent crash occurring in the 4.15 Preview. No other information is currently known.

Regression?
Yes - there is no evidence of this occurring in 4.14

Steps to Reproduce
  1. Download the following UE4.14.3 Project: [Link Removed]
  2. From the Launcher, open the UE4.15 Preview
  3. Open a copy of the UE4.14.3 ToppleTown Project
  4. RESULT: Crash with attached callstack
  5. EXPECTED: Project to open normally
Callstack
SEGV_MAPERR at 0x3

UE4Editor-Renderer.dylib!FRWBuffer::Initialize()
UE4Editor-Renderer.dylib!FMinimalDummyForwardLightingResources::InitRHI()
UE4Editor-MetalRHI.dylib!FMetalDynamicRHI::FMetalDynamicRHI()
UE4Editor-MetalRHI.dylib!FMetalDynamicRHIModule::CreateRHI()
UE4Editor-RHI.dylib!PlatformCreateDynamicRHI()
UE4Editor-RHI.dylib!RHIInit()
UE4Editor!FEngineLoop::PreInit()
UE4Editor!GuardedMain()
UE4Editor!<Unknown>
UE4Editor-Core.dylib!<Unknown>
Foundation!Unknown()
libsystem_pthread.dylib!<Unknown>
libsystem_pthread.dylib!<Unknown>
libsystem_pthread.dylib!<Unknown>

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Fixed
ComponentRendering
Affects Versions4.15
Target Fix4.15
Fix Commit3264486
Main Commit3389599
Release Commit3264486
CreatedJan 18, 2017
ResolvedJan 19, 2017
UpdatedApr 27, 2018