Unreal Engine Issues
Unreal Engine Issues
UFE Deploying and launching a packaged build on Linux fails due to invalid directory
UE - Platform - Linux - Dec 22, 2016Deploying and launching a packaged project, using a Custom Launch Profile that is set to copy the project to a repository, fails due to a missing /. I do not see this issue when running a Quick Lau ...
Code delegates duplicate function calls when owning actor is duplicated in the editor
UE - Foundation - Core - Jan 15, 2016If an actor that contains a delegate bound in code is duplicated after being placed in the level, the delegate for the duplicate will also trigger the delegate for the original as well. ...
GAS: GameplayCueNotify OnActive executed twice for Duration GEs on Standalone+ListenServer
UE - Gameplay - Gameplay Ability System - Aug 2, 2023When 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
UE - Editor - UI Systems - Aug 21, 2018"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 ...
Sub-components with the same name are not displayed on the correct parents in the Blueprints editor
UE - Gameplay - Oct 12, 2018Sub-components with the same name are not displayed on the correct parents in the Blueprints editor. Upon creation of an Actor blueprint initially derived from a c++ base class (VRCharacter) which ...
Player state on clients does not get set properly
UE - Networking - Jul 23, 2015When playing in Standalone with multiple characters there's the the chance that one of the player states does not get set and remains null. This is not a 100% repro case. Multiple tests may be req ...
If a function that takes a custom struct as a parameter is changed and a hot reload performed, any variables in Blueprints that are of that custom struct type will disappear and no longer be usable.
UE - Gameplay - Blueprint - Aug 27, 2015After creating a custom struct in C++ and adding a variable of that struct type to a Blueprint, hot reloading a code change that involves altering a function that takes the struct as a parameter res ...
VisibleAnywhere MovieSceneObjectBindingID property is editable
UE - Anim - Sequencer - Apr 19, 2024In 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] ...
UEdGraph pointer data is not correctly un-done and graph nodes are lost when declared as a UObject property
UE - Framework - Blueprint Editor - Aug 9, 2024When an undone operation is done for a UObject property that has a UEdGraph*, the modified UEdGraph nodes are lost. This UObject needs to be created/spawned in an Editor Environment by another Obje ...
Incorrect derivative ops detection when Add node is used with Nanite Pass Switch node in material graph
UE - Graphics Features - Mar 11, 2025Plugging an Add node which adds a constant value into a Nanite Pass switch node results in derivative ops to be detected where there should be none (which show up as red in the No Derivative Ops deb ...