Packaged Game Crashes When Launched with the -dx12 for Ray Tracing Features and PixelStreaming enabled

PixelStreaming - Apr 3, 2019

Packaged game crashes when launched with the -dx12 option and PixelStreaming is enabled. Found in 4.22 CL# 5660361 and 4.23 CL# 5704223 ...

Refraction of Ray Traced Translucency in Path Trace View is Incorrect

UE - Graphics Features - Lumen - Apr 8, 2019

Refraction of Ray Traced Translucency in Path Trace View is Incorrect. Found in 4.22 CL# 5660361 and 4.23 CL# 5779284 ...

Black Lines on Meshes with Ray Traced Global Illumination Enabled

UE - Graphics Features - Lumen - Apr 22, 2019

Black Lines on Meshes with Ray Traced Global Illumination Enabled.  Found in 4.22 CL# 5660361 and 4.23 CL# 6037269 ...

Crash when trying to open a widget after upgrading project

UE - Foundation - Core - Jul 1, 2019

A user is experiencing a crash after upgrading their project from 4.21 to 4.22. This crash did not occur in the 4.21 version of the engine. [Link Removed] ...

RetargetSource in AnimSeqeuence doesn't affect DDC key

UE - Anim - Runtime - Aug 4, 2020

Retarget source doesn't affect DDC key, so it causes incorrect result. Changing the anim sequence DDC key generation to include it fixes this issue. ...

[Feature Request] Event triggering skipped in subsequences and shots

UE - Anim - Sequencer - Feb 11, 2021

Events in subscenes can be skipped if playback skips over the end of the subscene before evaluating the event. ECS allows for determinism fences which can fix this issue. ...

InitializeAnimScriptInstance may only need to be called if the mesh actually changes when restoring state in Sequencer

UE - Anim - Sequencer - Sep 23, 2021

The fix for [Link Removed] reinitializes the anim bp whenever the animation section restores state, it may only be necessary to reinitialize it if the skeletal mesh changes. ...

Camera manager will not tick if the game is paused on begin play or possessed events

UE - Gameplay - Nov 4, 2021

This is an interesting bug because it is only happening on BeginPlay. I guess that there is some order of operations that the camera manager uses during creation that will stop if the game is paused ...

HighResolutionScreenshot result changed after migration to UE5

UE - Graphics Features - Aug 27, 2022

There was no problem in UE4. It can be fixed on UE5 by the following workaround.console command 'r.Editor.Viewport.MaxRenderingResolution' set 'Realtime off' on viewport  ...

Shooter Game Demo Controls have no Textures (Rendering White)

Docs - Samples - Jun 11, 2015

The Textures for the Demo play bars in Shooter Game are rendering White in 4.8.0 release, appears fixed in Main Promotable-CL-2581018. ...