Unreal Engine Issues

Massive FPS drops in editor when moving mouse over menu items on Linux

Navigating various dropdown menus in the Editor causes the FPS to drop down to around 25 or 10 in the Viewport on an empty project. This does not reproduce on Windows with -vulkan This issues was ...

Crash when setting a bookmark after going live with Multi-User Editing

When using Steam VR in combination with the Multi-User Editing plugin and the Virtual Production Utilities plugin the engine crashes when adding a bookmark while a server is running. ...

Player Controller Blueprint Attach to Pawn Checkbox is Missing

Creating a Blueprint Player Controller asset and trying to enable Attach to Pawn does not seem to be available. The section where this setting is located shows up, but the drop down list does not ap ...

Changing the Curve Asset in a Material Instance That Uses a Material Layer Crashes the Editor

Changing the Curve Asset in a Material Instance That Uses a Material Layer Crashes the Editor. Found in 4.20 CL# 4369336, 4.21 CL# 4753647, 4.22 CL# 5660361, 4.23 CL# 5974510 ...

RenderThread and RHI Thread have conflict

Event Driven Loader should update AsyncPackagesReadyForTick list before EventQueue.PopAndExecute

It will cause a crash if a level remove from world failed

[CrashReport] UE4Editor-Renderer!FMaterialShader::VerifyExpressionAndShaderMaps(FMaterialRenderProxy const *,FMaterial const &,FUniformExpressionCache const *) [ShaderBaseClasses.cpp:165]

Generated from CrashReporter ...

CachedLocalBounds is incorrectly updated

USkeletalMeshComponent::CalcBounds updates CachedLocalBounds by transforming the world FBoxSphereBounds, by the WorldToLocal transform, which is not sufficient to calculate the bounds in local space ...

VR Splash screen delta rotation does not appear to update

When using the node Add Loading Splash Screen the delta rotation does not appear to update/rotate the texture that is applied as the tool tip appears to suggest ("(in)" Incremental rotation, that is ...