[Reverb][Regression] - The Reverb Effect in World Settings Does Not Update When Loading New Levels

UE - Audio - Mar 12, 2021

When loading a new level via the Open Level node in Blueprints, the World Settings do not update the Applied Reverb Effect. When trying to reproduce the issue in 4.25.4, issue did not occur (the r ...

Override Game Mode in Media Render Queue does not work properly

UE - Anim - Sequencer - Jun 21, 2021

This problem behaves differently between Local and Remote Render when Game Mode is set in Override. ...

Virtual Bones Are Not Retained in Retargeted Animation Aim Offsets

UE - Anim - Rigging - Retargeting - May 13, 2022

Occurs 5/5 times Virtual Bones are not retained in Retargeted Animation Aim Offset. Regression does not occur as UE5 Manny assets are not available for retargeting before UE5.    ...

Collision between physicalized actors and instanced static meshes produce warnings.

UE - Simulation - Physics - Sep 25, 2023

Collision between an instanced static mesh and a physics simulating actor (with "simulation generates hits events" enabled) results in the following warning: LogChaos: Warning: Collision handler en ...

Editor crash when building lighting and world partition minimap

UE - World Creation - Worldbuilding Tools - World Partition - Apr 17, 2025

It is possible for an editor crash to occur if a build is running (Lightmass in this case) and another is launched such as Build World Partition Minimap (as well as HLOD and Spline builders). This i ...

ChordBlockers don't work as expected when ChordAction is set in InputAction

UE - Gameplay - Input - Jun 3, 2025

In the Enhanced Input System, when using a UInputTriggerChordAction to define a chorded input (e.g., Shift + W), the automatic chord blocking system (UInputTriggerChordBlocker) only functions correc ...

Spline Array created in code cannot be edited in a blueprint

UE - Gameplay - Components - Apr 20, 2015

If a TArray of spline components is created in code it is not possible to edit/add nodes to the spline inside a blueprint. ...

Spline Mesh Component created from KML file doesn't render in PIE after spline point change

Tools - Oct 8, 2015

Spline Mesh Component created from KML file doesn't render in PIE after spline point change I cannot get this to occur outside of the users test project. He is pulling data from a KML file, creatin ...

DetourCrowdAIController causes AI to update movement differently

UE - AI - Apr 3, 2015

When you use MoveTo BT node, with a target set as Actor and your AIController is DetourCrowdAIController, the AI pawn will update its goal destination much less frequently. Instead of constantly fo ...

Custom Depth as Mask in High Resolution Screenshot Tool saving Boolean Value

Tools - Jul 28, 2016

Closing and re-opening a project that had the 'Use Custom Depth as Mask' option checked within the High Resolution Screenshot Tool, will cause the boolean value to be unchecked and the viewport to r ...