No sound plays when using Built-In Spatialization or Simple ITD plugins

UE - Audio - Spatialization - Nov 10, 2021

No audio can be heard when using the Built-In Spatialization plugin. This is a regression from 4.26. Occurs in 4.27 and 5.0. ...

Crash occurs while animating a control rigged actor in sequencer when drag selecting the actor in a orthographic view

zComponent - Archive - Dec 8, 2021

This is a regression Tested in 4.27.2 Drag selecting a control rigged actor while in an orthographic view causes the editor to crash. ...

Custom data update crash - invalid memory when removing an instance from a UHierarchicalInstancedStaticMeshComponent

UE - Engine Scaling - Streaming - HLOD - May 3, 2022

This is a race condition, did not crash with -onethread. Attached the collected threaded callstacks, although they look misaligned. Licensee has provided a suggested fix. ...

Editor crashes when keying a frame to an Animation from Pose with Appended Frames

UE - Runtime - Animation - May 17, 2022

This is a regression. Tested in //UE4/Release-4.27 CL18319896 Editor crashes when keying a frame to an Animation from Pose with Appended Frames. ...

Instanced Editable Variables of type Blueprint Interface can't be set

UE - Editor - May 19, 2022

This is a regression tested in //UE4/Release-4.27 cl 18319896 Instanced Editable Variables of type Blueprint Interface can't be set. ...

Adding a variable to a Structure after packaging then repackaging causes the package to fail

UE - Framework - Aug 12, 2022

This is not a regression. Tested in //UE4/Release-4.27 CL18319896 Adding a variable to a Structure after packaging then repackaging causes the package to fail. ...

Changing a Mesh's Build Scale doesn't update the Mesh's Bounding

UE - Editor - Sep 8, 2022

This is a regression tested in //UE4/Release-4.27 CL18319896 Changing a Mesh's Build Scale doesn't update the Mesh's Bounding to the same scale. ...

Light leaks when cast shadow disabled light is applied to the Hair material.

UE - Rendering - Features - Shadows - Feb 27, 2023

There seems to be a leak in the ContactShadow determination in DeferredLightingCommon.ush ShadowRayCast(), but I could not determine if this is the specification. This problem always occurs from 4. ...

LevelInstance: Editor Texture Streaming (UDN)

UE - Engine Scaling - Streaming - Level Instances - Aug 14, 2023

Further investigate and fix Editor Level Instance texture streaming data update which currently isn't being updated when moving a Level Instance in the editor. ...

Cannot copy from the message log when building with Clang

UE - Editor - Jan 8, 2024

This was disabled for clang a long time ago in CL 3019423 due to a codegen crash but seems like the bug is fixed now ...