Unreal Engine Issues

Crash occurs while animating a control rigged actor in sequencer when drag selecting the actor in a orthographic view

This is a regression Tested in 4.27.2 Drag selecting a control rigged actor while in an orthographic view causes the editor to crash. ...

UNetDriver server-side hitch results in ActorInfo->NextUpdateTime far into future

A high UWorld::Tick DeltaSeconds (i.e. GameThread hitch) results in a high UNetDriver::TickFlush DeltaSeconds. This DeltaSeconds can high (many seconds) if the hitch is long. This value then affects ...

[CrashReport] UE4Editor-Engine!FMaterial::GetShader(FMeshMaterialShaderType *,FVertexFactoryType *,int,bool) [MaterialShared.cpp:2054]

Generated from CrashReporter Possible dupe of [Link Removed], however callstack differs significantly Error Message: Fatal error: [File:D:/Build/++UE4+Licensee/Sync/Engine/Source/Runtime/Engine/P ...

Suspend/resume iOS Metal Crash on low end device with MTLCommandBufferErrorMemoryless error with lots of geometry

The project was built in Unreal 4.27.2 binary from the Epic Games Launcher. At this stage we have only observed the crash on devices with a hardware combination of Apple A9 1.8 GHz and 2GB of Memory ...

Crash when importing new mesh and regenerating skeleton for additive animation

Crash due to LAN beacon packet incompatibility in 4.22

We changed the IP address serialization format without bumping the LAN beacon packet version. Should just need to bump it up. ...

[CrashReport] Fatal Error: Ran out of memory - GenerateInstancedStereoCode() shadercompiler.cpp

This is a trending crash coming out of the 4.18 release. Users have not provided any descriptions of their actions when the crash occurred. Source Context 174 if (GWarn) 175 { ...

[CrashReport] UE4Editor-D3D12RHI!static void SetRayTracingHitGroup(class FD3D12CommandContext & const, class FD3D12RayTracingShaderTable *,

Generated from CrashReporter Error Message: Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x00000088 User message (Aritzia_Bistro.log): datasmith re-import ...

[CrashReport] Assertion failed: GetOuter()==NULL in UE4Editor_Core!FText::IsEmpty

This is a top 10 crash affecting many users. It is believed it may be related to the auto listen / reimport feature. The callstack shares similarities to past tickets, such as:[Link Removed][Link R ...

Lighting Build Fails With High Density Foliage

Trying to build lighting on a map with high density foliage will fail lighting build or cause the editor to crash. This occurs in 4.15, 4.16, 4.17, and 4.18. There have been multiple reports of this ...