2 GB/hr Memory Leak on levels that are not enclosed

UE - Graphics Features - Feb 19, 2016

2 GB/hr Memory Leak on maps with no Sky Sphere or Atmospheric Fog to occlude empty space. The leak also occurs during general usage, but was tested with a blank project and an absolutely blank leve ...

In Path tracer, the Sun disk in the Twinmotion Dynamic sky does not produce the Bloom, Lens flare and Lens dirt effects.

TM - Rendering - Mar 15, 2024

Note that it works when using the old sun intensity (25) instead of the 100,000 value. Also, reducing the scattering in the sky will bring back the bloom. ...

Set Physical Material node in BP do not work with Destructibles

UE - Simulation - Physics - Destruction - Apr 7, 2015

Using the Set Physical Material for Destructible does not work currently. In comparison with a static mesh physical material will change via key press during gameplay. ...

Project cant package with Nativize on and Widgets as value in TMap

UE - Gameplay - Blueprint - Jun 15, 2017

When packaging with nativization if you have a widget as a value in a TMap, the package will not finish building. The TMap will throw an error during the Package process that reads: UnrealBuildToo ...

Progress bar causes black screen on iOS

UE - Platform - Mobile - Sep 1, 2017

When using a progress bar that is partly filled the screen on an iOS device will be blacked out except for the screen space containing the filled part of the progress bar This did not occur in stan ...

Custom Stencil Is Not Rendering In UI Materials

UE - Graphics Features - Nov 30, 2018

Widgets with a UI Material that uses Custom Stencil will not render meshes with a set stencil. This is working as expected in 4.19 CL# 4033788. Found in 4.20 CL# 4369336, 4.21 CL# 4541578, and 4.22 ...

On Released fires when holding down a button when using touch (mouse/finger not moving)

UE - Editor - UI Systems - Sep 26, 2017

On Released fires when holding down a button when using touch with the mouse or finger. This happens in mobile preview as well as on devices. As a note, if he mouse is moved before the release auto ...

BoneMap thread safety crash

UE - Graphics Features - Aug 9, 2016

Crash occurs in FGPUBaseSkinVertexFactory::FShaderDataType::UpdateBoneData() on RenderThread2 at the following line: check(NumBones <= MaxGPUSkinBones); The problem seems to be a race condition ...

Hot Reload crash on PIE with custom AIController and Perception Component

UE - AI - Sep 29, 2015

If a pawn in the level is using a custom AI Controller that sets the AIPerceptionComponent in code, the editor will crash on PIE after a hot reload. CrashReporter: [Link Removed] ...

Packaging with Blueprint Nativization Fails When a Struct and Interface Reference Each Other

UE - Gameplay - Blueprint Runtime - Feb 24, 2017

Packaging with nativization enabled will fail when a struct and interface reference each other. Error Message: LogCompile:Error: Circular dependency detected for filename C:\Users\Sean's\Downloads ...