Unreal Engine Issues
Unreal Engine Issues
Keyboard Shortcuts don't work on the Outliner Window if it is detached from the Main Window
UE - Editor - May 27, 2025Keyboard Shortcuts don't work on the Outliner Window if it is detached from the Main Window. As described in Steps To Reproduce, as soon as the Outliner Window is detached from the Main Window, most ...
Virtual Shadow Maps on Spot Lights cause a blocky presentation similar to an incorrect mip level
UE - Rendering - Features - Shadows - May 26, 2025Spot Lights may present with very blocky shadow artefacts when a long attentuation radius is provided with a small cone angle. In extreme cases, this causes the VSMs to invalidate every frame. Notab ...
World Source in Take Recorder does not record auto-tracked actors properly
zComponent - Archive - May 23, 2025The Take Recorder plugin allows for multiple sources to be recorded during gameplay. The World Source is expected to record everything in the level when the Autotrack Actors option is enabled. Once ...
Compilation error with Evaluate Chooser node when getting All Results from Subclass Of table
UE - MVF Character - Animation - May 22, 2025Trying to use the Evaluate Chooser node in the All Results mode with a chooser table that returns the Subclass Of type results in a compilation error ("Array of Actor Object References is not compat ...
Creating FTickableObjectBase inherited class in async thread may cause pure virtual function call
UE - Framework - May 22, 2025Classes that inherit from FTickableObjectBase are added to the tickable queue by the QueueTickableObjectForAdd function during their construction (see FTickableGameObject::FTickableGameObject). At t ...
When importing static mesh using interchange and collision is generated, the asset does not have Collision Generated set to true
zComponent - Archive - May 19, 2025Context: The Interchange Framework is Unreal Engine's import and export framework. When importing a mesh without collision, collision can be auto-generated. Problem: The problem is when importing s ...
Generated instances can not be cleaned up when PCGVolume is copied to a different level
UE - Graphics Tools - PCG - Procedural Tools - May 19, 2025Copying a PCGVolume beyond a level creates an instance that cannot be deleted. In UE5.5 or later, it is possible to delete the instance by pressing Cleanup button with Ctrl key (purge all components ...
AnimNotify Issue with LevelSequencer Actor with URO
UE - Runtime - Anim BP - May 19, 2025Sometimes AnimNotify does not fire when an animation is executed under the following conditions. 1. The CharacterMesh's AnimationMode uses UseAnimationAsset 2. CharacterMesh's URO is enabled (Enable ...
[AI] SmartObjectSlot does not have a valid node ref even when it should project to navigation.
zComponent - Archive - May 17, 2025If you request a SmartObject slot entrance location and require it to be navigable, it will return a result that does not include the node ref of the nav poly for the entrance to the slot. Instead i ...
Editing values of a control rig can cause the undo to stop working in Anim Details or Sequencer
UE - ACT Character - Anim in Engine - May 16, 2025It has been observed that the the undo function may stop working after the User changes values of a control rig with the slider in the Sequencer. While using the slider, the value stops chaning afte ...