Setting the Collision Response of an instanced actor through the Details panel overrides the Construction Script setting

UE - Simulation - Physics - Jun 23, 2020

The collision response of an actor can be changed through the Details panel of the instanced actor and this overrides the collision response settings that were set through the Construction Script. ...

Particles can flicker at the end of first emitter loop when interpolated spawning is enabled

UE - Niagara - Jun 18, 2020

Particles flicker at the end of first emitter loop when interpolated spawning is enabled This issue does not occur if interpolated spawning is disabled. This issue does not occur for any of the su ...

Landscape that has tessellation enabled sometimes doesn't render in cooked build

UE - LD & Modeling - Terrain - Landscape - Jun 18, 2020

If a landscape uses a material that has tessellation enabled. Then in Editor and PIE things render correctly. But in a cooked package we sometimes hit this check. check(!bCurrentRequiresAdjacencyI ...

Naming an enum parameter on a blueprint function "Category" places the function in a category

UE - Gameplay - Blueprint Editor - Jun 17, 2020

If the user gives an enum parameter in a blueprint function the name "Category", this will result in the function being added to a category in the My Blueprint panel. ...

BuildPlugin command cannot build plugins with platform extensions

UE - Foundation - Cpp Tools - Automation Tool - Jun 17, 2020

It seems like the BuildPlugin command is not copying all the dependencies in the HostProject.  Here are the errors reported by a customer:  DynamicCompilation.RequiresCompilation: Compiling D:\Per ...

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

UE - Graphics Features - Jun 15, 2020

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 ...

Playing audio files in Editor doesn't work when Magic Leap Zero Iteration is enabled

UE - Platform - XR - Jun 14, 2020

When the "Enable Zero Iteration" and "Use ML Audio for Zero Iteration" settings are both checked, the audio doesn't play inside Unreal Editor. This happens in the following cases:Playing an audio fi ...

Anim Interface Implementation from Child AnimBP is not working

UE - Anim - Runtime - Anim Blueprints - Jun 11, 2020

The licesee expects to have Anim Interface Implementation from the Child AnimBP override the behavior in Parent AnimBP, even calling link Anim Class Layers in BP to link the ChildAnimBP layers is no ...

UE 4.25.1 Offline Installer Display Error

UE - Editor - Content Pipeline - Datasmith - Importer - Jun 9, 2020

[Image Removed] [Image Removed] ...