Unreal Engine Issues
Unreal Engine Issues
[MetaSounds][Voice Management] - MetaSounds set to Restart do not virtualize correctly when the Attenuation Shape is not a Sphere
UE - Audio - Aug 17, 2022When using Attenuations with MetaSounds, if the Attenuation Shape is Sphere it works as expected. However, other shapes do not work correctly. The sound either becomes deactive or sometimes the soun ...
Blueprint Class functions are overridden in packaged shipping project.
UE - Gameplay - Blueprint - Mar 14, 2015When using a child blueprint that calls a parent blueprints tick and its functions, The event is not being called if you package the project for shipping Win (32-Bit) Pictures of the Parent BP are ...
The 'Set Constrained Components' node doesn't set the physics constraint components correctly if used in the Construction Script
UE - Simulation - Physics - Jan 20, 2015The 'Set Constrained Components' node doesn't set the physics constraint components correctly if used in the Construction Script. ...
Subobject components do not have undo functionality within the level
Tools - Jan 4, 2021When moving these components around in the world editor, the transform gizmo will move with the undo, but the actual component will not. I could not repro this behavior with non-native component ...
Game projects that rely on legacy include paths are not compatible with Blueprint nativization.
UE - Gameplay - Blueprint - Nov 10, 2018Using legacy-style #include paths in a game project is allowed by UBT by default, but it's currently not compatible with Blueprint nativization, as it does not account for this possibility. Current ...
Filling Vertex Colors does not propogate down to other LODs
Tools - Nov 19, 2018The original reported behavior called out that filling individual channels did not apply to LODs when LOD Model Painting = False. With changes implemented in 4627582, the initial fill will reach LOD ...
[Submix][Recording] - Existing Sound Wave to Overwrite option has no effect
UE - Audio - Submixes - Jul 29, 2021This is an old bug that looks like it never made its way into JIRA. Adding for documentation. ...
Retargeting Pose From Mesh Does Not Retarget With Source Mesh Component and Skeletal Mesh Variable Types
UE - Anim - Rigging - Retargeting - May 11, 2022Occurs 5/5 times *Regression *does not occur: No Retargeting Pose From Mesh node in //UE4/Release-4.27.2. Retarget Pose From Mesh node does not retarget when used with Source Mesh Component and Sk ...
Lumen Global Distance Field Trace Leaking due to Surface Cache Sampling
UE - Rendering - Graphics Features - Jan 12, 2026At specific distances from a thin wall, surfaces inside of a sealed chamber can receive indirect lighting from outside, leaking light into the chamber. This appears to be due to how SWRT handles sa ...
"Scale for <ComponentName> has a component set to zero, which will result in a bad body instance" warning spam when moving actor instance even with Collision Profile overriden to "NoCollision"
UE - Simulation - Core - Jan 12, 2026When a StaticMeshComponent has a scale component of zero in WorldSpace (after accumulating with the hierarchy from the root to it), function UPrimitiveComponent::OnCreatePhysicsState() logs the warn ...