'Set Playback Position' node fires Timeline event even if 'Fire Events' is set to false

UE - Gameplay - Apr 30, 2015

'Set Playback Position' node fires Timeline event even if 'Fire Events' is set to false. User Description: Basically using the set playback position node to set a new time position for a timeline ...

Changing the scale of a single HISM instance greatly affects the LOD selection of all instances

UE - Rendering - Architecture - Sep 22, 2025

When using ISMs and HISMs, each instance can have its own transform, which can affect the LOD selection of one or more instances. For HISMs in particular, changing the scale of a single instance gre ...

Dithered LOD transitions do not work when the camera's field of view changes

UE - Graphics Features - Jun 12, 2025

Dithered LOD transitions do not work when changing the camera's field of view and cause artifacts when both the FOV and camera distance to the object are changed simultaneously. ...

Illegal Else Without Matching If

UE - Simulation - Physics - Feb 3, 2017

Looks like there's a missing if/else pair in BodyInstance.cpp ...

Sound Mix Modifiers do not properly affect Sound Class

UE - Audio - Mar 30, 2015

Sound mixers do not properly override variables within a sound class. This prevents users from being able to modify variables such as volume or pitch quickly and efficiently by using the push/pop st ...

SetControlRotation does not affect VR

UE - Platform - XR - Oct 1, 2015

Using a Set Control Rotation node does not change the camera rotation when in VR mode. ...

Lidar Point Cloud Plugin functions return empty locations for individual points (both relative and world scale)

UE - Editor - Content Pipeline - Feb 21, 2025

The locations of individual point cloud points are empty in the array returned from the get_points_in_box_as_copies,get_points_in_sphere_as_copies,line_trace_multi functions. The last boolean argum ...

Static mesh appears to lose material reference after setting the material via blutility and changing levels

Tools - Nov 16, 2016

Static mesh appears to loose material reference after setting the material to a dynamic material instance via blutility and changing levels ...

Setting a float value with the meta tag "ExposeOnSpawn = true" on spawn doesn't retain the value

UE - Gameplay - Feb 25, 2022

Float values with the meta tag expose on spawn aren't retaining their value when the value is set with a Spawn Actor node. It appears to only be floats. Maybe it has something to do with the change ...

[CrashReport] UBlueprintGeneratedClass::AddReferencedObjectsInUbergraphFrame()

UE - Gameplay - Blueprint - Nov 2, 2017

This is a common engine crash that has occurred since at least 4.16. Users have not provided any useful descriptions of their actions when the crash occurred. The callstack shares some similaritie ...