User comments:
I attempted to duplicate sphere reflection captures and rebuild lighting with various reflection captures and was unable to reproduce.
Currently no steps to reproduce
SEGV_MAPERR at 0x3 UE4Editor-MetalRHI.dylib!FMetalHeap::BufferSizeToIndex() UE4Editor-MetalRHI.dylib!FMetalHeap::CreateTexture() UE4Editor-MetalRHI.dylib!FMetalSurface::FMetalSurface() UE4Editor-MetalRHI.dylib!FMetalDynamicRHI::RHICreateTextureCubeArray() UE4Editor-MetalRHI.dylib!FMetalDynamicRHI::RHICreateTextureCubeArray_RenderThread() UE4Editor-Renderer.dylib!FRenderTargetPool::FindFreeElement() UE4Editor-Renderer.dylib!FReflectionEnvironmentCubemapArray::InitDynamicRHI() UE4Editor-RenderCore.dylib!FRenderResource::UpdateRHI() UE4Editor-Renderer.dylib!TGraphTask<FScene::AllocateReflectionCaptures(TArray<UReflectionCaptureComponent*, FDefaultAllocator> const&)::EURCMacro_ResizeArrayCommand>::ExecuteTask() UE4Editor-Core.dylib!FNamedTaskThread::ProcessTasksNamedThread() UE4Editor-Core.dylib!FNamedTaskThread::ProcessTasksUntilQuit() UE4Editor-Core.dylib!FTaskGraphImplementation::ProcessThreadUntilRequestReturn() UE4Editor-RenderCore.dylib!RenderingThreadMain() UE4Editor-RenderCore.dylib!FRenderingThread::Run() UE4Editor-Core.dylib!FRunnableThreadPThread::Run() UE4Editor-Core.dylib!FRunnableThreadPThread::_ThreadProc() libsystem_pthread.dylib!<Unknown> libsystem_pthread.dylib!<Unknown> libsystem_pthread.dylib!<Unknown>
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-53774 in the post.