Unreal Engine Issues
Unreal Engine Issues
When PCH is Disabled, Error Occurs in VulkanGenericPlatform.h at Android Build
UE - Graphics Features - Dec 6, 2018If disable PCH in Target.cs, an error will occur when building for Android. The log is as follows. LogPlayLevel: Error: D:/Build/Release-4_21_0/Engine/Source/Runtime/VulkanRHI/Private/Android/../Vu ...
CRITICAL: Regression: CRASH: SHOOTERGAME: Client crashes when using ServerTravel command
UE - Networking - Sep 17, 2014Update (5/4/15): New repro steps using Main (//depot/UE4/Promotable-CL-2535351): 1. Create a new Blueprint project 2. Create 3 new Levels: MainMenu, Lobby, and Level 3. Create 3 new GameModes: Main ...
Preview Scene - Lighting angle changes between Profiles
UE - Graphics Features - Aug 25, 2020When previewing an object, the lighting angles change between profiles; the lighting position at '0' will also change when the Lighting Rig Rotation is set to another value, then back to 0 again. ...
LIVE: Changing a Custom Event to Multicast in a parent blueprint causes crash
UE - Gameplay - Blueprint - Nov 13, 2014Changing a Custom Event to Multicast in a parent blueprint causes crash if the Custom Event is being used in the child blueprint. Callstack: MachineId:DE189244480D3CD0F8CA729A02DD38A6 UserName:tjb ...
Crash when using StaticDuplicateObject with mismathced Source and Destination class types
UE - Foundation - Jun 19, 2025Starting in Unreal Engine 5.4, StaticDuplicateObject internally switched to using Unversioned Property Serialization (UPS) for performance reasons. However, UPS assumes the source and destination ob ...
Crash when attempting to change the parent of a material instance constant through editor scripting
UE - Rendering - Architecture - Materials - Apr 9, 2025The built-in class "UMaterialEditingLibrary" provides various editor scripting functions related to creating and editing materials and material instances. One of these functions, UMaterialEditingLib ...
[CrashReport] UE4Editor-Renderer.dylib!void FForwardLightingParameters::Set<FRHICommandList, FRHIPixelShader*>()
UE - Graphics Features - Oct 27, 2017This is a 4.18 Mac/Metal crash that has occurred for a few users. It appears related to the Forward Renderer. Callstack from Log[2017.10.27-06.10.08:809][261]LogMaterial: Missing cached shader map ...
[CrashReport] UE4Editor-MetalRHI.dylib!FMetalRHICommandContext::RHIEndDrawIndexedPrimitiveUP()
UE - Graphics Features - Nov 2, 2017This is a trending Mac/Metal crash in the 4.18 release, although although it has existed with low frequency since at least the 4.16 release. Users have not provided any descriptions of their actions ...
[CrashReport] UE4Editor_Landscape!FLandscapeSplinesSceneProxy::GetDynamicMeshElements() [landscapesplines.cpp:159]
UE - LD & Modeling - Terrain - Landscape - Nov 17, 2017This is an infrequent crash in 4.18. Users have not provided any descriptions of their actions when the crash occurred. Source Context 147 for (int32 ViewIndex = 0; ViewIndex < Views.Num( ...
[CrashReport] UE4Editor-Slate!FSlateApplication::OnMouseUp(EMouseButtons::Type,FVector2D) [SlateApplication.cpp:5321]
UE - Anim - Rigging - Feb 15, 2021Generated from CrashReporter User information:Tried to choose f_med_brw_body_skmesh for the retargeting pose as mentioned at: https://docs.unrealengine.com/en-US/Resources/Showcases/MetaHumans/Reta ...