Unreal Engine Issues
Unreal Engine Issues
Root component transform is reset after reparenting an Actor-based BP with a non-native root to a parent with a native root.
UE - Gameplay - Blueprint - May 10, 2022Two conditions for this bug to appear:The new actor class we are re-parenting to overwrites the root component in C++The map is not loaded while re-parenting No current workaround other than to rep ...
Actor attached to child actor fails to serialize as part of map
UE - Framework - Components - Nov 3, 2023Attaching other actors to a child actor (actor spawned by ChildActorComponent) fails to serialize correctly as part of the map. The attached actor loads as detached and resets its position back to w ...
Lumen indirect lighting artifacts when far from world origin
UE - Graphics Features - Lumen - Feb 6, 2024Lumen seems to not be using Large World Coordinates somewhere. The Lumen Scene develops artifacts at large distances (5000 KM) from the world origin. ...
Debug Lines can be seen through objects at certain camera angles.
UE - Graphics Features - Apr 28, 2022Debug Lines can be seen through objects that occlude them at certain camera angles. Repro Rate: 3/3 Tested this in //UE4/Release-4.27 @ CL#18319896 and the issue did not occur there, it is a regre ...
'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 ...
Dithered LOD transitions do not work when the camera's field of view changes
UE - Graphics Features - Jun 12, 2025Dithered 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, 2017Looks like there's a missing if/else pair in BodyInstance.cpp ...
Lidar Point Cloud Plugin functions return empty locations for individual points (both relative and world scale)
UE - Editor - Content Pipeline - Feb 21, 2025The 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, 2016Static 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, 2022Float 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 ...