Unreal Engine Issues
Unreal Engine Issues
AttachComponentToComponent node does not change the location of a Spawned particle system at runtime
UE - Framework - Components - Feb 17, 2022You can use the "Spawn Emitter Attached" function as a work around ...
Actors removed from the world are unregistered both before and after EndPlay
UE - World Creation - Worldbuilding Tools - Nov 5, 2024Actors that are removed from the world have UnregisterAllComponents called twice. Removal can be caused by unloading a data layer that owns the actor. In cases like exiting the application or destr ...
CreateDynamicMaterialInstance will pull from the base rather than overridden mesh on SkinnedMeshComponent when run from construction script
UE - Framework - Blueprint - Feb 6, 2025When UPrimitiveComponent::CreateDynamicMaterialInstance is called on a skinned mesh, and the input material is invalid, we call USkinnedMeshComponent::GetMaterial to get the base material on the exi ...
Level Actors that are converted to a Blueprint using "Convert Selection to Blueprint Class" and using "Harvest Components" as the CreatingMethod, does not sanitize dots (.) character and make them invalid for operations like StaticFindObject.
UE - Framework - Blueprint Editor - Feb 20, 2025When Level Actors are converted into a Blueprint using the "Convert Selection to Blueprint Class" option with "Harvest Components" as the creation method, the conversion process does not sanitize do ...
Anim State Notifies Don't Consistently Fire Begin/End Events for Looping Anim Sequences
UE - Anim - Runtime - Anim Blueprints - Jun 9, 2025If you have an Animation Notify State and set it up on an animation to start at the exact beginning of the anim sequence and finish exactly at the end (I have attached a picture of this). It doesn't ...
Message to rebuild lights does not display after static mesh position has changed
UE - Graphics Features - Aug 28, 2024In a static lighting environment, moving static objects no longer marks the built lighting as invalid. This prevents the on-screen warning from appearing. Regression introduced in CL: 25964466 on / ...
NPC - When an NiagaraParameterCollection asset is duplicated or when its namespace is changed, any existing parameters get incorrectly duplicated/renamed with the addition of the namespace prefix
UE - Niagara - Sep 30, 2024When an NPC asset is duplicated, the ne wasset gets incorrectly duplicated parameters: one set with the correct names, and one set with the original namespace prefix embedded into the names. These i ...
Bake Pose is not applied correctly when using LODSettings asset
UE - Anim - Rigging - Jul 16, 2025The Bake Pose setting does not work when using a SkeletalMesh LODSettings asset. After the change in CL22878911, the BasePose in the LODSettings asset is no longer copied to the BakePose in the skel ...
Collision lost from body when using world composition and streaming
UE - Simulation - Physics - Mar 1, 2021Physics object from a streamed level does not interact with other physics objects in persistent level. ...
UObject set to DefaultToInstanced will show all properties declared at the blueprint level, even in they're private and not instance editable
UE - Editor - Workflow Systems - Apr 19, 2024Licensee found that when creating a UObject class with DefaultToInstanced and EditInLineNew specified, and then a derived BP was created using the UObject class and used as a variable type in an act ...