Unreal Engine Issues

Spline Mesh Collision doesn't work in packaged game when spawning them at runtime

Spline Mesh Components lose their collision in a packaged game when spawning them at runtime, or modifying them via 'Set Start and End' function at runtime. ...

Naming a category for a function the same name as a function can cause the My Blueprints tree to display incorrectly (making the category heading look like a function)

Oculus NetDriver Regression/Fix

From https://github.com/Oculus-VR/UnrealEngine/issues/60#issuecomment-544537005 UOculusNetDriver::LowLevelSend was modified to take an FInternetAddr pointer instead of an FString (due to the same c ...

[Audio Insights] - Insights continues to display virtual sounds after they have stopped being active

Virtual loops continue to be displayed in Audio Insights even after the sound has stopped being active for certain cases. This also occurs when stopping PIE while a sound is virtual. The sound will ...

Live Coding Doesn't Appear to Correctly Reload or Reinit Automation Spec Tests

Something in the way that live coding interacts with the test system, or how the tests are loaded at startup and initialized, isn't quite matching up.   ...

WasRecentlyRendered() and GetLastRenderTimeOnScreen() still triggers when a skeletal mesh re-enters the view frustum despite being occluded.

AActor::WasRecentlyRendered() and UPrimitiveComponent::GetLastRenderTimeOnScreen() both still trigger when a skeletal mesh (occluded behind a wall) re-enters the player's view frustum after being ou ...

Mutable compile hangs indefinitely when using Customizable Object Extension Data Constants

I am getting a CO compile to hang indefinitely while compiling. It seems to be caused by the optimization in LocalLogicOptimiserAST that tries to convert 3+ conditionals into a switch statement. It ...

Steam VOIP will drop packets with more than two people talking at once

VOIP has a limited amount of concurrent clients talking before packets start to get dropped. ...

Crash can occur in the Ansel plugin when setting Use Client Side Camera Updates to false in Player Camera Manager

Setting the `bUseClientSideCameraUpdates` property in a `PlayerCameraManager` class to false can result in a crash in the Ansel plugin because `GEngine->GameViewport` may be NULL. Another user has ...

Lightmass: Blocky lightmap artifacts appears on the Mesh Actor which is shadowing by a single face mesh

Begin Map Begin Level Begin Actor Class=/Script/Engine.StaticMeshActor Name=Plane_2 Archetype=/Script/Engine.StaticMeshActor'/Script/Engine.Default__StaticMeshActor' Begin Object Class=/Script/En ...