Buffer Visualization Modes Are Inaccurate

UE - Graphics Features - Apr 19, 2018

In 4.18, Buffer Visualization Modes appear very similar to their representation in Buffer Overview. In 4.19 and Main (CL 4008322) the results are very blown out. Similar issue reported in [Link Remo ...

Preformance drop when calling draw to render target

UE - Graphics Features - Jun 19, 2018

There is a major performance drop after 4.18 when calling draw material to render target. This is an issue reported by many community members, and there seem to be additional reports with different ...

Failure packaging for android that supports both armv7 arm64 with GoogleVR plugin enabled

UE - Platform - XR - Aug 30, 2016

Unable to package a build for android (ATC) if the GoogleVR plugin is enabled and both arm64 and armv7 are supported. This does not reproduce if you turn off GoogleVR. This does not reproduce if yo ...

Duplicating Level With Large _BuiltData File Results in Editor Crash

UE - Foundation - Core - Jun 7, 2018

Trying to duplicate a level in the editor that has a large _BuiltData file results in a crash. In the case of the supplied test level, it is over 3 GB. Crash repros in 4.19.2 and Main (CL 4115885). ...

Ensure triggers when undoing change to newly created variable

UE - Gameplay - Blueprint - Sep 28, 2018

Ensure will trigger when undo reverts text to default value. "This triggers an ensure because the undo ends up calling SKismetInspector::ShowDetailsForObjects(), which forces the keyboard focus to ...

PublicIncludePaths array in a 4.20 plugin looks for the include path in relation to the Engine instead of the plugin

UE - Foundation - Cpp Tools - UnrealBuildTool - Jul 23, 2018

A plugin created in 4.19 automatically includes an entry for the plugin's Public directory in the PublicIncludePaths array in the Plugin.Build.cs file. Plugins created in 4.20 no longer automaticall ...

Cloth paint update issues

UE - Simulation - Physics - Jan 7, 2020

Activating and Deactivating Cloth Paint marks the skeletal mesh as dirty, even if no values were painted and there is no transaction in the Undo History. Painting Max Distance values from non-zero ...

Incorrect WorldType causes crash in ULandscapeSplinesComponent::CheckForErrors

UE - LD & Modeling - Terrain - Landscape - Jun 21, 2018

When adding a sub-level that contains a Landscape and Landscape Splines to an existing Level, it will cause a crash when building the lighting.  This issue was reported in 4.18.3 (CL 3832480) and t ...

Editor Crashes when enabling Vertex Colors on an imported Skeletal Mesh with Morph Target Animations

UE - Graphics Features - Oct 11, 2018

Licensee wants to be able to import skeletal meshes which have Vertex Colours (their entire game is Vertex Coloured) and Morph Target animation, but they're seeing a crash when toggling Vertex Color ...

Crashes Caused by Deinitialization of Variables with Specific Names

UE - Gameplay - Components - Jun 14, 2018

I was able to repro the crash in 4.19. Unable to open sample project in 4.20 or 4.21. Per Licensee: While porting one of our classes from using UMaterialBillboardComponent to a hand rolled Billboar ...