Unreal Engine Issues

GAS: GameplayCueNotify OnActive executed twice for Duration GEs on Standalone+ListenServer

When playing Standalone or as Listen Server, whenever a GameplayEffect with a duration is applied that fires gameplay cues, the server will locally execute OnActive twice on GameplayCueNotify_Actors ...

UMG ListView doesn't propagate OnItemSelectionChanged events to its items

"When using a UMG ListView widget, there seems to be two ways to be notified of item selection changes. An event on ListView which fires when the selection state of any item changes, and an event on ...

VisibleAnywhere MovieSceneObjectBindingID property is editable

In general, UPROPERTY(VisibleAnywhere) makes a property ineditable. But, if the type of a property is FMovieSceneObjectBindingID, VIsibleAnyhere no longer prohibits it from editing. [Image Removed] ...

World Initialization is performed on Transition World if the client's process is halted at a certain point

A user reported an issue where, if a client hitches during world transition, the client will continue referring to the transition world instead of the newly created one. This will result in the clie ...

Packaged Project with Media Player Asset 'From Memory' Crashes and Corrupts Project

There is no Callstack associated with this crash. And I was unable to reproduce this in main due to a known issue when switching the 'Stream Mode' to 'From Memory'. When packaging a project in 4.6. ...

Crash while using Geometry Scripting to add an Array of Vector 2D data to 'Append Buffers to Mesh' node UV0 input pin

Geometry Scripting plugin isn't available for 4.27.2, and the behavior is the same 5.0.1. Crash while using Geometry Scripting to add an Array of Vector 2D data to 'Append Buffers to Mesh' node UV0 ...

Unexpected behavior occurs when the default elements of a TMap in an Actor Component are modified in an instance of a Blueprint containing that Actor Component

Adding an Actor Component that contains a TMap property to a Blueprint results in unexpected behavior when default elements of the TMap are modified in an instance of the Blueprint in the level:Addi ...

Ribbon Particle Normals are reversed from default Sprite Particles

It appears that the Vertex Normals from Ribbon Particles are opposite of what is expected via the Default Particle System given both systems share the same alignment (Facing Camera) [Image Removed] ...

Crash when Undo after deleting a Material Layer of a Material Instance.

In Unreal Engine version 5.5.4, the Editor crashes when performing Undo after deleting a Material Layer of a Material Instance ...

Exporting a spawnable through Python doesn't work