Unreal Engine Issues
Unreal Engine Issues
Deleting class instance will call destructor for each instance of the class
Tools - Mar 11, 2015**UPDATE** When the actor is pulled from content browser to scene, a "ghost" object is created even if the actor is still being "held". Dragging the actor back and forth into the editor viewport wi ...
r.Lumen.Reflections.DownsampleFactor split screen artifact
UE - Graphics Features - Lumen - Dec 6, 2024In Split-Screen, with "r.Lumen.Reflections.DownsampleFactor" set to 2, it is possible to have vertical colored artifacts on View 1 (the second view). The Licensee reported the artifact occurred on ...
Editor crash when using Animation BP pose watch
OLD - Anim - Apr 7, 2020We encountered a crash when using Anim BP Pose Watches to inspect poses on actors in a PIE instance. Specifically it seems ending the PIE session while the Anim BP is still watching the actor in the ...
Crash when opening a texture or editing its properties after stopping a preview in the material editor
UE - Rendering - Architecture - Materials - Sep 5, 2025When a texture asset has certain properties edited, its PostEditChangeProperty() method calls to UTexture::NotifyMaterials(), which triggers a recompilation of materials that reference it in their m ...
When loading a new level, a variable of the subclass of type is reset to null in the classes inherited from UGameInstance or UGameInstanceSubsystem
UE - Core - Data Pipeline - Cooker - Dec 1, 2022Reproduced 3/3 times, issue does not occur in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed Regression. It's only in packaged & quick launched builds that this occurs; PIE works as normal. ...
Browsing to a "Packaged Level Actor" does not take to the PackagedLevelActor inside the Content Browser.
UE - Editor - Content Pipeline - Jan 8, 2025There is a bug inside Unreal Editor when selecting "Browse to Asset" for a Packed Level Actor. Right clicking the Packed Level Actor, all the asset options appear. If you click the "Browse to Asse ...
An ensure is triggered when a StaticMesh is set inside a StaticMeshComponent on an actor, and another actor references the static mesh actor from two child actor components.
UE - Framework - Blueprint - Feb 5, 2025There is an issue when setting a Static Mesh inside a blueprint that it is referenced by another blueprint with more than one child actor. An ensure is triggered inside the engine, and there is a ...
ACineCameraAttachMount's "Target Actor" constraint does not work with Spawnables or Replaceables in Sequencer
UE - CAPT - Tools - Virtual Camera - Aug 12, 2025Constraints (UTickableConstraint) are usually created throuh the "Animation" tab available in the Editor's "Animation Mode". When created through that interface while Sequencer is open, the internal ...
Property won't be force synced when re-enabling replication.
UE - Networking - Mar 21, 2017It seems like if replication is re-enabled for a given property, its state should be force synced (depending on replication conditions). Otherwise, the state will remain "out of sync" for an indeter ...
BuildPatchTool crashes on Mac and Linux when building android or ios with multiple chunks
Portal - Feb 18, 2020"It seems that deallocation of TLazySingleton<FInternationalization> causes unhandled exception. If DISABLE_LAZY_SINGLETON_DESTRUCTION=1 is provided - the build completes successfully" ...